EP1886958B1 - Lift facility with a belt, belt for such a lift facility, combination of such a belt and method for assembling such a combination in a lift facility - Google Patents

Lift facility with a belt, belt for such a lift facility, combination of such a belt and method for assembling such a combination in a lift facility Download PDF

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Publication number
EP1886958B1
EP1886958B1 EP07113880A EP07113880A EP1886958B1 EP 1886958 B1 EP1886958 B1 EP 1886958B1 EP 07113880 A EP07113880 A EP 07113880A EP 07113880 A EP07113880 A EP 07113880A EP 1886958 B1 EP1886958 B1 EP 1886958B1
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EP
European Patent Office
Prior art keywords
belt
belts
contact surface
composite
lift installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07113880A
Other languages
German (de)
French (fr)
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EP1886958A1 (en
Inventor
Ernst Ach
Luc Bonnard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
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Filing date
Publication date
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Priority to EP07113880A priority Critical patent/EP1886958B1/en
Priority to EP09173749A priority patent/EP2141110B1/en
Publication of EP1886958A1 publication Critical patent/EP1886958A1/en
Application granted granted Critical
Publication of EP1886958B1 publication Critical patent/EP1886958B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • B66B7/062Belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00Producing belts or bands
    • B29D29/10Driving belts having wedge-shaped cross-section
    • B29D29/103Multi-ribbed driving belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/22Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2201/00Ropes or cables
    • D07B2201/20Rope or cable components
    • D07B2201/2083Jackets or coverings
    • D07B2201/2087Jackets or coverings being of the coated type
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2501/00Application field
    • D07B2501/20Application field related to ropes or cables
    • D07B2501/2007Elevators

Definitions

  • the present invention relates to an elevator system with a belt, a belt for such an elevator system, a composite of such belts and a method for assembling such a composite in an elevator installation.
  • An elevator installation comprises an elevator cage and as a rule a counterweight, which are movable in an elevator shaft or along free-standing guide rails. To generate the movement, the elevator installation has at least one drive with at least one drive pulley or drive shaft each, which carry the elevator car and the counterweight via one or more belts and / or transmit the required drive forces thereto.
  • the elevator car and the counterweight can be connected via the same or the same belt to the drive.
  • the elevator car and the counterweight may also each be coupled to the drive via separate belts such that the counterweight lifts when the elevator car is lowered and vice versa.
  • the traction sheave or drive shaft exerts tensile forces on the drive belts in order to lift the elevator car or the counterweight
  • pure carrying belts are only deflected by deflection elements, in particular deflection rollers, and absorb a constant part of the weight force of the elevator car and the counterweight.
  • drive and carrying belts are preferably identical.
  • a belt according to the present invention may be used for any of the functions described above, that is to say as both a drive and a suspension belt, as one of a plurality of belts and / or as a belt connected to the elevator car and / or the Counterweight is attached. Accordingly, traction sheaves and pulleys are referred to below generally as pulleys.
  • Such belts for elevator installations usually comprise a belt body made of elastomers, for example polyurethane (“PU”) or ethylene-propylene-diene rubber (“EPDM”).
  • PU polyurethane
  • EPDM ethylene-propylene-diene rubber
  • tensile carriers in the form of steel and / or plastic cords are embedded in the belt body.
  • the cords may be formed as single wires or preferably constructed of single or multi-stranded wires. They are advantageously arranged in the neutral fiber of the belt cross-section, in which no tensile or compressive stresses occur during a looping of a belt pulley.
  • flat belts are used in elevator systems, in particular belts whose width w is substantially greater than their height t in the radial direction of the belt pulley parallel to the belt wheel axis. Due to their low height, such flat belts have a small area moment of inertia about their transverse axis and, at the same time, due to their large width, a large area moment of inertia about their longitudinal and vertical axes. They are thus very elastic with respect to their transverse axis, but at the same time very stiff about their longitudinal and vertical axis. On the one hand, this makes it easy to loop around pulleys and, on the other hand, to twist or bend only slightly in the free end sections. The arrangement of the tension members next to each other in the neutral fiber leads to a large width of the belt in relation to the height.
  • the WO 2006/000500 A1 proposes a flat belt for elevator systems, which is constructed from a first, and an associated second, each extruded from PU belt, with tension members are arranged in the neutral bending plane of the flat belt.
  • EP 1396458 A2 a belt for an elevator installation is disclosed which has longitudinal ribs for increasing the power transmission.
  • These longitudinal ribs can only be arranged on one side or on both sides of the belt. Deflection and drive pulleys, on which the belt is arranged, may have corresponding grooves, so that in each case one rib of the belt comes to lie in a groove of the disk. This results in a lateral guidance of the belt on the disc, so that it is possible to dispense with side flanges.
  • a belt in particular a toothed belt, is known for transmitting drive forces.
  • a method for producing such a belt initially comprises the production of a partial belt with recesses lying in the longitudinal direction, into which tensile carriers are introduced.
  • a second sub-belt is now so extruded on the first sub-belt with the tension members that a belt is formed with adjacent tension members.
  • EP 0005076 A2 is described a V-belt for power transmission with low thermal expansion.
  • the ribs are arranged transversely to the longitudinal direction of the belt.
  • tension members run in the longitudinal direction of the belt.
  • the EP 1 555 234 B1 known to provide the flat belt-like belt body with V-ribs which cooperate with largely complementary shaped grooves on the tread of the pulley.
  • the oblique flanks of the V-ribs abut also inclined flanks of the pulley.
  • the V-ribs advantageously guide the belt transversely on the pulley.
  • An object of the present invention is therefore to provide an elevator system in which the risk of jamming between the belt and pulley is reduced.
  • an elevator system according to the preamble of claim 1 is further developed by its characterizing features.
  • a belt for such an elevator system proposed in claim 14, a composite of such belt and in claim 17, a method for assembling such a composite in an elevator system protected.
  • An elevator installation comprises an elevator car, a drive and, advantageously, a counterweight coupled thereto, which lowers when the elevator car is lifted by the drive and vice versa.
  • the A lift assembly comprising a belt assembly having at least one belt, the belt having a belt body in which a tension member assembly is disposed and a first contact surface on a first cross-sectional side in the direction of the height of the belt and second on a first cross-sectional side opposite the height of the belt Cross-sectional side having a second contact surface.
  • the drive preferably comprises one or more pulleys, in particular one or more traction sheaves or a drive shaft with a plurality of drive zones, which are at least partially wrapped by the belt of the belt assembly.
  • the belts wrap around the belt wheels with a wrapping angle of 180 °, preferably less than 180 °, preferably less than 150 °, preferably less than 120 °, preferably 90 °. Due to the small possible bending radii of the belt, it is possible to connect the drive with a separate traction sheave or to integrate blowing zones in an output shaft of the drive, so that is referred to by a drive shaft.
  • the diameter of the pulleys is less than or equal to 220mm, preferably less than 180mm, preferably less than 140mm, preferably less than 100mm, preferably less than 90mm, preferably less than 80mm.
  • the tensile forces are frictionally and / or positively introduced into the belt of the traction sheave or a drive shaft.
  • the running surface of the belt wheels can have largely complementary shaped grooves, in which the V-ribs engage.
  • the flanks of the V-ribs are frictionally engaged only on the flanks of the grooves in largely complementarily shaped grooves; however, the areas between the belt flanks are not in contact with the groove bottoms and groove tips.
  • the belt body consists in an advantageous embodiment of an elastomer, such as PU and / or EPDM.
  • an elastomer such as PU and / or EPDM.
  • To protect against abrasion and dynamic destruction of the belt body may have one or more sheaths, for example made of textile fabric.
  • the tension member arrangement comprises one or preferably several tension members, in particular steel and / or plastic cords.
  • the cords may be formed as single wires or preferably constructed of single or multi-stranded wires. They are advantageously arranged in or near the neutral fiber of the belt cross-section, in which no or only slight tensile or compressive stresses occur in a looping of a pulley.
  • a belt may be formed as an endless belt or, preferably, as a finite belt, which is made endless only when placed by a belt lock and thus can be guided, for example, through openings or placed on non-flying mounted pulleys, especially in difficult Umlenkuringn.
  • the ratio of the maximum width w to the maximum height t of the belt is in the range of 0.8 to 1.0, preferably in the range of 0.9 to 1.0, and especially 1.0.
  • the belt is thus higher than wide.
  • Another advantage is the additional volume of the belt body in the direction of its height. This extra volume advantageously dampens vibrations and breaks down bumps, which makes the run of such a belt even.
  • the transmission of the circumferential force between tension members and pulley is done under short shear deformation of the belt body.
  • the occurring alternating deformations lead in the long run to a disruption of the belt body and thus limit the life of a belt.
  • the shear deformations and on the other hand better dissipate the resulting heat over the larger volume and in particular on the larger surface, which increases the lifetime of a belt according to the invention advantageously.
  • the tension member assembly is disposed in the neutral fiber at about the middle of the belt.
  • the belt body comprises a first part belt, in which the tension member is arranged, and a second part belt thus fixedly connected in a longitudinal surface.
  • This can be extruded on the first sub-belt, so that both sub-belts connect to each other on their longitudinal surface. It can, as for example from the WO 2006/000500 A1 known to be filled grooves in the longitudinal surface of the first belt part of the second belt part.
  • the two partial belts can be glued.
  • both partial belts have substantially the same height, so that the longitudinal surface is arranged approximately in the middle of the belt.
  • the first sub-belt surrounds the Werneran Mr.
  • the second sub-belt surrounds the Switzerlandierian Mr.
  • the tension member assembly is advantageously disposed in the neutral fiber in which, when deflected about a pulley, i. a bending around the belt transverse axis no tensile and compressive stresses occur, and the Glasierian Aunt is arranged more in the first sub-belt, experiences the second sub-belt in the looping a pulley a greater bending stress and thus greater tensile or compressive stresses.
  • the second sub-belt is softer than the first sub-belt, so that upon bending in the Werstalllage the second sub-belt is not damaged by tensile stresses, but this elastically nachgiebt .
  • the second sub-belt may have a lower Shore hardness than the first Partial belt has.
  • the Shore hardness of the first sub-belt 85 ° Sh that of the second 80 ° Sh amount.
  • the first and / or second contact surface may preferably have a coating with a specific coefficient of friction. This coefficient of friction can in each case be higher or lower than the coefficient of friction of the actual belt body.
  • the coating may comprise a polyamide ("PA”) film.
  • a coating with a higher coefficient of friction on the first contact surface, which is intended to engage with a drive shaft, a coating with a higher coefficient of friction, on the second contact surface, which is provided for engagement with a deflecting element, a coating with a lower coefficient of friction can be arranged.
  • vapor deposition or flocking may also be provided.
  • ribs in particular V-ribs.
  • triangular or semicircular rib cross sections are possible.
  • this particularly preferred embodiment can advantageously have the running surfaces of pulleys, which are wrapped by the belt, to the ribs largely complementary grooves, in which engage the ribs. This can be the same radial force, ie the same Belt preload or bearing load a higher contact pressure and thus a higher traction capability can be achieved.
  • the ribs have a wedge-shaped cross section with a flank angle of 60 ° to 120 °, wherein the range of 80 ° to 100 ° is preferable.
  • the flank angle is the angle existing between both side surfaces (flanks) of a wedge-shaped rib.
  • flank angles below 60 °, ie, more acute angles can also be realized.
  • the belt can also in opposite directions around two pulleys, in which it contacts the first pulley with its first contact surface, the second pulley with its second contact surface at the wrap of both pulleys are guided in the transverse direction, which can advantageously avoid running out of the belt even from pure pulleys.
  • the number of ribs on both contact surfaces does not necessarily have to be identical.
  • the first pulley is a traction sheave or drive shaft
  • the second pulley is a deflection roller
  • the second contact surface over which no tensile forces are applied, have fewer ribs.
  • the first contact surface may have two ribs and the second contact surface may have a rib.
  • the second contact surface may also be formed flat without contours.
  • first and second contact surface are different, for example, have different coefficients of friction, or equally, if the first and second part belts are not completely identical, for example, the tension members are arranged more in the first sub-belt and / or this a different hardness than the second tension member
  • the first and second contact surfaces may have different colors to ensure correct placement of the belt. For this purpose, for example, both contact surfaces dyed or coated differently be. If the belt is composed of two sub-belts, both sub-belts can be made of materials of different colors.
  • the strap assembly comprises a plurality of straps arranged side by side in the direction of their width.
  • these belts can be positively connected to each other.
  • a first belt may have a projecting in the direction of its width projection which engages in a corresponding recess of a second belt arranged next thereto.
  • the belts can be easily and releasably connected to each other during assembly, which simplifies the laying and removal of the narrower individual belts relative to the resulting belt arrangement.
  • the belt can also be connected to each other via clamping elements or permanently attached to each other, for example, glued together.
  • a method which comprises the following steps: extruding the first part belt so as to at least partly surround the tension member arrangement, and extruding the second part onto the first part belt such that the tension member arrangement is completely arranged in the belt.
  • a belt according to the invention For mounting a belt according to the invention in an elevator installation, it is proposed to connect a plurality of belts via an assembly line to form a composite.
  • the belts are at least partially surrounded by the assembly line and / or the assembly line is on a second contact surface with the belt connected. It is also particularly advantageous if the belts are connected to one another in defined assembly intervals with the assembly line.
  • the actual method of assembling the composite in an elevator installation involves placing the composite on pulleys and fixing the belts to ends of the composite with belt break points.
  • the belts of the composite are laid on pulleys according to the mounting distances. It is particularly advantageous if the belts of the composite are placed in grooves of at least one cabin deflection pulley and / or grooves of at least one traction sheave or drive shaft and / or grooves of at least one counterweight support roller. Also, it is easy and convenient for assembly to transport the composite as a loop in the elevator shaft and unroll from the loop.
  • Fig. 1 shows a section through an installed in an elevator shaft 1 elevator system according to an embodiment of the present invention.
  • This comprises a drive 2 fixed in an elevator shaft 1 with a traction sheave or drive shaft 4.1, an elevator car 3 guided on car guide rails 5 with deflection rollers in the form of car support rollers 4.2 mounted below the car floor 6, a counterweight 8 guided on counterweight guide rails 7 with a further deflection roller Shape of a counterweight support roller 4.3, and designed as a V-ribbed belt 12 strap for the elevator car 3 and the counterweight 8, which transmits the driving force from the traction sheave or drive shaft 4.1 of the drive unit 2 to the elevator car and the counterweight.
  • the V-ribbed belt 12 is fastened at one of its ends below the traction sheave or drive shaft 4.1 to a first belt fixing point 10. From this it extends down to the counterweight roller 4.3, wraps around this and extends from this to the traction sheave or propeller shaft 4.1, wraps around them and runs along the counterweight-side cabin wall down, wraps around each on both sides of the elevator car mounted below the elevator car 3 Kabinentragrolle 4.2 by 90 ° and extends along the counterweight 8 facing away from the cabin wall up to a second belt fixing point eleventh
  • the plane of the traction sheave or drive shaft 4.1 may be arranged at right angles to the counterweight-side cabin wall and their vertical projection outside the vertical projection of the elevator car 3 are. It is therefore preferable that the traction sheave or drive shaft 4.1 has a small diameter of less than / equal to 220 mm, preferably less than 180 mm, preferably less than 140 mm, preferably less than 100 mm, preferably less than 90 mm, preferably less than 80 mm, so that the distance between the left-hand cabin wall and the opposite wall of the elevator shaft 1 can be as small as possible.
  • a small diameter of the traction sheave or drive shaft 4.1 allows the use of a gearless drive motor with relatively low drive torque as the drive unit 2.
  • the belt break points 10, 11 are known in the art devices in which the V-ribbed belt 12 is clamped between a wedge and a housing.
  • Fig. 2 shows a section through a belt of the elevator system Fig. 1 according to a first embodiment of the present invention in the form of a V-ribbed belt 12.
  • This has a belt body 20 which comprises a first part belt 20.1 and a second part belt 20.2. Both partial belts are firmly connected together in a longitudinal surface 20.3.
  • the longitudinal surface 20.3 shown schematically as flat.
  • the longitudinal surface of a partial body may however have recesses into which formations of the other partial body engage in order to reinforce the connection between the two partial bodies.
  • a first contact surface 20.4 of the first part body is provided for contact with the traction sheave or drive shaft 4.1 and the counterweight carrying roller 4.3.
  • She has two V-ribs 20.6, which can engage in this largely complementary grooves of the pulleys 4.1, 4.3 and are guided by this side. This advantageously increases the contact pressure and thus the traction capability of the drive 2.
  • a second contact surface 20.6 of the second partial body 20.2 is provided for contact with the Kabinentragrollen 4.2 and has for this purpose in an analogous manner two V-ribs 20.6, which can engage in this largely complementary grooves of the pulleys 4.2 and are guided by these laterally.
  • the second contact surface only a rib 20.6, which is sufficient for lateral guidance of the belt 12 in the cab support rollers 4.2.
  • tension members 21 in the form of stranded steel wires are arranged side by side. However, more, for example, five tension members or less, for example, 3 tension members may be arranged side by side. Likewise, the individual tension members can also be offset from one another in the direction of the height of the belt 12.
  • the tensile carriers are arranged in the neutral fiber of the belt body 20, in which no tensile or compressive stresses occur when the belt 12 wraps around a pulley 4, in particular the traction sheave or drive shaft 4.1. Due to the greater distance of the second contact surface 20.5 from this neutral fiber, the tensile stresses occurring during the wrapping in the second partial belt 20.2 are greater than the compressive stresses present in the first partial belt 20.1. Therefore, a softer elastomer is selected as the material for the second sub-belt, in the embodiment with a Shore hardness of 80 ° Sh against a Shore hardness of 85 ° Sh of the first sub-belt. In the second execution after Fig. 3 the second sub-belt is smaller in cross-section than the first and has in particular only one V-rib 20.6. This also makes it correspondingly softer than the first sub-belt.
  • the first contact surface 20.4 has, at least in the regions of its V-ribs 20.6, which come into frictional engagement with the flanks of the traction sheave or drive shaft 4.1, a coating 20.7 with a PA film.
  • the entire first contact surface 20.4 is coated in a continuous or discontinuous process, which simplifies the production.
  • the vapor deposition is, for example, a metal vaporization.
  • the flocking is, for example, a flocking with short synthetic or natural fibers. These steaming or flocking may extend over the entire first contact surface 20.4 and take place in continuous or discontinuous processes.
  • the ratio of the maximum width w to the maximum height t of the belt body including the V-ribs 20.6 is in the range of 0.8 to 1.0. In the embodiment, the ratio is substantially equal to one.
  • the belt 12 - also in the in Fig. 3 shown second embodiment - stiffer compared to bends about its transverse axis. The resulting higher preload when looping a pulley with grooves reduces the risk of jamming of the belt in the pulley.
  • Other ratios of the maximum width w to the maximum height t of the belt body including the V-ribs 20.6 in the range of 0.6 to 1.0 are of course also possible with knowledge of the present invention.
  • the second belt dampens vibrations and absorbs shocks. In addition, it reduces shear stresses in the first sub-belt, which occur in the transmission of tensile forces on the tension members. Finally, it increases over its extra volume and its Surface heat dissipation. This advantageously increases the service life of a belt according to the invention.
  • the traction sheave or drive shaft 4.1, the cage support rollers 4.2 and the counterweight support roller 4.3 are provided at their periphery with grooves which are formed largely complementary to the ribs of the V-ribbed belt 12.
  • the V-ribbed belt 12 at least partially wraps around one of the pulleys 4.1, 4.2 or 4.3, its ribs lie in corresponding grooves of the pulley, thereby ensuring excellent guidance of the V-ribbed belt on this pulley.
  • the traction capability is improved by a wedge effect between the grooves of the traction sheave or drive shaft 4.1 and the ribs of the V-ribbed belt 12.
  • the tension members 21 are arranged in the neutral fiber approximately in the middle of the belt 12.
  • the belt body 20 does not consist of partial belts.
  • the elastomeric material is extruded onto the tension member assembly 21 in such a way that it completely or partially surrounds it and the tension member assembly 21 comes to lie approximately in the center of the maximum height t in the belt body 20.
  • this embodiment corresponds to those according to Fig. 2 to 4 ,
  • a belt arrangement in an elevator installation can comprise more than one belt.
  • Fig. 4 shows a preferred embodiment of such a belt assembly. In each case engages at least one projection 20.8 of a first belt 12.1 in a corresponding recess 20.9 of an adjacent second belt 12.2, which is the lateral guidance further improved and reduced twisting or bending of the entire belt assembly, especially in the free Trum Stud.
  • the second belt 12.2 may have on both lateral sides of projections which engage in corresponding recesses of the adjacent belt.
  • the outermost belts of a belt arrangement interconnected by projections have no recess or projection.
  • Such a belt arrangement allows a belt arrangement of arbitrary width to be easily and quickly assembled on site from narrow, easy-to-handle individual belts, which considerably simplifies the production and storage, transport and (dis) assembly.
  • the first part belt 20.1 can first be extruded in such a way that it completely or partially surrounds the tension member arrangement 21.
  • the second sub-belt 20.2 can then be extruded onto the first sub-belt 20.1 in such a way that the tension-carrier arrangement is completely arranged in the belt.
  • Fig. 6 to 9 refer to the mounting of the belt 12 in an elevator installation.
  • Fig. 6 shows a plurality of belts 12, which are interconnected via an assembly line 30.
  • the assembly line 30 surrounds the belt 12 at least partially.
  • three, four or six or eight eight belts 12 form a composite 120 which is partially surrounded by assembly line 30 and can be transported as a loop easily and without problems into the elevator shaft 1.
  • the assembly line 30 is fixed, for example reversibly or irreversibly cohesively to the belt 12.
  • it is a thin plastic tape with a single-sided adhesive layer.
  • the Plastic tape is connected via the adhesive layer with the belt 12.
  • the adhesive tape 30 can be pulled off the belts 12 and the loosened belts 12 can thus be singulated.
  • the assembly line 30 is mounted on the second contact surface 20.5 facing away from the first contact surfaces 20.5 of the belt body 20, so that the contact surfaces 20.4 of the individual belts 12 are also freely accessible in the composite 120.
  • the individual belts 12 in the composite 120 can be placed over their contact surfaces 20.4 in corresponding grooves of the pulleys.
  • the assembly line 30 also guarantees the correct lateral spacing of the belts 12 relative to one another on the pulleys.
  • the belts 12 are connected to each other in lateral mounting intervals 30.1 with the assembly line 30, which correspond to the lateral distances of the individual belt 12 on the pulleys.
  • the composite 120 is placed on belt wheels 4.1, 4.2, 4.3 and belts 12 at ends 12.1, 12.2 of the composite 120 are fixed with belt fixing points 10, 11.
  • the belts 12 of the composite 120 are placed on pulleys 4.1, 4.2, 4.3 according to assembly distances 30.1.
  • auxiliary hoist 14 which in the present example the Fig. 7 to 9 is attached to the ceiling of the elevator shaft 1.
  • a flaschenzugieri device mounted in the top shaft area is preferably used.
  • a fluid lifting device arranged in the lowest shaft area eg a hydraulic system or else a construction crane.
  • the elevator car 3 is present at least in structural form. The final completion of the elevator car 3 can be done later.
  • the elevator car 3 has a bottom plate or a lower structural part with a lower surface 6, on which first cabin deflection rollers 4.2 and second cabin deflection rollers 4.2 are arranged, and a cover plate (or an upper structural part), which forms a kind of working platform in the present example.
  • the work platform may also be formed by the bottom plate of the elevator car 3, in the event that the existing structural shape of the elevator car 3 does not yet include side walls.
  • the elevator car 3 can be coupled to the auxiliary hoist 14 and by this in the elevator shaft 1 up and moved down. Once the elevator car 3 is coupled to the auxiliary hoist 14 and fixed, the composite 120 is according Fig. 6 laid in the elevator shaft 1.
  • the composite 120 is transported in the form of a loop 12.3 on the roof of the elevator car 3, deposited there and partially unrolled.
  • the elevator car 3 is in the shaft pit for this purpose, so that the fitter can put the loop 12.3 from the ground floor of the building simply the roof of the elevator car 3.
  • the one end 12.2 of the unrolled composite 120 is lowered on one side to the elevator car 3, led under the elevator car 3 to the opposite side of the elevator car 3 and from there back up to the roof of the elevator car 3.
  • the installer can of course first lay the composite 120 around the cabin support rollers 4.2 and then deposit the loop 12.3 on the roof of the elevator car 3.
  • the belts 12 of the composite 120 are inserted via the contact surfaces 20.4 in the corresponding grooves of the Kabinentragrollen 4.2.
  • derailment protectors not shown in the figures, which prevent derailing of the straps 12 in the case of suspension medium slats both in the radial and in the axial direction, are attached to the cab support rollers 4.2.
  • the end 12.2 is provisionally fixed on the roof of the elevator car 3. Now the elevator car 3 is moved by the auxiliary hoist 14 in the shaft head.
  • the individual belts 12 of the end 12.2 are fixed individually to a respective second belt fixing point 11.
  • the loop 12.3 is unrolled from the roof of the elevator car 3 into the pit of the elevator shaft.
  • the other end 12.1 of the unrolled composite 120 is held and guided around the traction sheave or drive shaft 4.1 and discharged into the pit of the elevator shaft. If enough space is present, the fitter can also lead the whole loop 12.3 to the traction sheave or drive shaft 4.1 and then drain them into the pit of the elevator shaft.
  • the belt 12 of the composite 120 are inserted via the contact surfaces 20.4 in the corresponding grooves of the traction sheave or drive shaft 4.1.
  • derailment protectors are optionally attached to the traction sheave or drive shaft 4.1.
  • the other end 12.1 of the composite 120 is placed in the pit around a counterweight carrying roller 4.3.
  • the elevator car 3 is moved by the auxiliary hoist 14 into the shaft pit and the other end 12.1 is provisionally fixed on the roof of the elevator car 3.
  • the elevator car 3 is moved by the auxiliary hoist 14 in the shaft head and the belt 12 of the composite 120 are inserted via the contact surfaces 20.4 in the corresponding grooves of the counterweight roller 4.3.
  • derailment guards are attached to the counterweight carrying roller 4.3.
  • the individual belts 12 of the other end 12.1 are now fixed individually to a respective first belt fixing point 10. Only at this time, where the belts 12 are completely laid in the elevator shaft 1, the assembly line 30 can be removed from the composite 120.
  • the fifth embodiment of the present invention with a belt 12 according to Fig. 10 largely corresponds to that according to Fig. 5 , so to the description too Fig. 5 is referenced.
  • the belt body 20 is formed on the second cross-sectional side with a flat second contact surface 20.5.
  • This flat second contact surface 20.5 has no profiling in the form of transverse or longitudinal ribs.
  • the sixth embodiment of the present invention with a belt 12 according to Fig. 11 according to those Figure 10 , wherein in the only difference to the embodiment according to Fig. 10 the belt body according to Fig. 11 from two sub-belts 20.1, 20.2 as in the embodiments according to the Fig. 2 to 4 and 6 described and illustrated exists.
  • the flat second contact surface 20.5 is arranged parallel to the longitudinal surface 20.3.
  • the tension member assembly 21 comes to rest approximately in the middle of the maximum height t of the belt body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Belt Conveyors (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

Die vorliegende Erfindung betrifft eine Aufzugsanlage mit einem Riemen, einen Riemen für eine solche Aufzuganlage, einen Verbund aus solchen Riemen sowie ein Verfahren zur Montage eines solchen Verbunds in einer Aufzugsanlage.The present invention relates to an elevator system with a belt, a belt for such an elevator system, a composite of such belts and a method for assembling such a composite in an elevator installation.

Eine Aufzugsanlage umfasst eine Aufzugskabine und in der Regel ein Gegengewicht, die in einem Aufzugsschacht oder entlang freistehender Führungsschienen bewegbar sind. Zum Erzeugen der Bewegung weist die Aufzugsanlage mindestens einen Antrieb mit mindestens je einer Treibscheibe bzw. Treibwelle auf, die über einen oder mehrere Riemen die Aufzugskabine und das Gegengewicht tragen und/oder die erforderlichen Antriebskräfte auf diese übertragen.An elevator installation comprises an elevator cage and as a rule a counterweight, which are movable in an elevator shaft or along free-standing guide rails. To generate the movement, the elevator installation has at least one drive with at least one drive pulley or drive shaft each, which carry the elevator car and the counterweight via one or more belts and / or transmit the required drive forces thereto.

Dabei können die Aufzugkabine und das Gegengewicht über den- bzw. dieselben Riemen mit dem Antrieb verbunden sein. Alternativ können die Aufzugkabine und das Gegengewicht auch jeweils über separate Riemen mit dem Antrieb derart gekoppelt sein, dass sich das Gegengewicht hebt, wenn die Aufzugkabine abgesenkt wird und umgekehrt. Während die Treibscheibe bzw. Treibwelle Zugkräfte auf die Antriebsriemen ausübt, um die Aufzugkabine bzw. das Gegengewicht anzuheben, werden reine Tragriemen lediglich über Umlenkelemente, insbesondere Umlenkrollen umgelenkt und nehmen einen konstanten Teil der Gewichtskraft der Aufzugkabine und des Gegengewichts auf. Bevorzugt sind Antriebs- und Tragriemen jedoch identisch.In this case, the elevator car and the counterweight can be connected via the same or the same belt to the drive. Alternatively, the elevator car and the counterweight may also each be coupled to the drive via separate belts such that the counterweight lifts when the elevator car is lowered and vice versa. While the traction sheave or drive shaft exerts tensile forces on the drive belts in order to lift the elevator car or the counterweight, pure carrying belts are only deflected by deflection elements, in particular deflection rollers, and absorb a constant part of the weight force of the elevator car and the counterweight. However, drive and carrying belts are preferably identical.

Ein Riemen nach der vorliegenden Erfindung kann für jede der oben beschriebenen Funktionen eingesetzt werden, also sowohl als Antriebs- als auch als Tragriemen, als einer von mehreren Riemen und/oder als Riemen, der an der Aufzugkabine und/oder dem Gegengewicht befestigt ist. Dementsprechend werden Treibscheiben bzw. Treibwellen und Umlenkrollen im Folgenden allgemein als Riemenräder bezeichnet.A belt according to the present invention may be used for any of the functions described above, that is to say as both a drive and a suspension belt, as one of a plurality of belts and / or as a belt connected to the elevator car and / or the Counterweight is attached. Accordingly, traction sheaves and pulleys are referred to below generally as pulleys.

Solche Riemen für Aufzuganlagen umfassen üblicherweise einen Riemenkörper aus Elastomeren, beispielsweise Polyurethan ("PU") oder Ethylen-Propylen-Dien-Kautschuk ("EPDM"). Um die Zugkräfte zu übertragen, sind in dem Riemenkörper Zugträgern in Form von Stahl- und/oder Kunststoff-Corden eingebettet. Die Corde können als Einfachdrähte ausgebildet oder bevorzugt aus ein- oder mehrfach verseilten Drähten aufgebaut sein. Sie sind vorteilhaft in der neutralen Faser des Riemenquerschnitts angeordnet, in der bei einer Umschlingung eines Riemenrads keine Zug- oder Druckspannungen auftreten.Such belts for elevator installations usually comprise a belt body made of elastomers, for example polyurethane ("PU") or ethylene-propylene-diene rubber ("EPDM"). In order to transmit the tensile forces, tensile carriers in the form of steel and / or plastic cords are embedded in the belt body. The cords may be formed as single wires or preferably constructed of single or multi-stranded wires. They are advantageously arranged in the neutral fiber of the belt cross-section, in which no tensile or compressive stresses occur during a looping of a belt pulley.

Herkömmlicherweise werden in Aufzuganlagen Flachriemen eingesetzt, im einzelnen Riemen, deren Breite w parallel zur Riemenradachse deutlich grösser ist als ihre Höhe t in radialer Richtung des Riemenrads. Solche Flachriemen weisen aufgrund ihrer geringen Höhe ein kleines Flächenträgheitsmoment um ihre Querachse und gleichzeitig aufgrund ihrer grossen Breite ein grosses Flächenträgheitsmoment um ihre Längs- und Hochachse auf. Sie sind damit vorteilhaft sehr elastisch bezüglich ihrer Querachse, jedoch gleichzeitig sehr steif um ihre Längs- und Hochachse. Damit lassen sie sich einerseits gut um Riemenräder schlingen und verdrillen bzw. verbiegen sich andererseits in den freien Trumabschnitten nur geringfügig. Auch die Anordnung der Zugträger nebeneinander in der neutralen Faser führt zu einer im Verhältnis zur Höhe grossen Breite des Riemens.Conventionally, flat belts are used in elevator systems, in particular belts whose width w is substantially greater than their height t in the radial direction of the belt pulley parallel to the belt wheel axis. Due to their low height, such flat belts have a small area moment of inertia about their transverse axis and, at the same time, due to their large width, a large area moment of inertia about their longitudinal and vertical axes. They are thus very elastic with respect to their transverse axis, but at the same time very stiff about their longitudinal and vertical axis. On the one hand, this makes it easy to loop around pulleys and, on the other hand, to twist or bend only slightly in the free end sections. The arrangement of the tension members next to each other in the neutral fiber leads to a large width of the belt in relation to the height.

Die WO 2006/000500 A1 schlägt dementsprechend einen Flachriemen für Aufzuganlagen vor, der aus einem ersten, und einem damit verbundenen zweiten, jeweils aus PU extrudierten Teilriemen aufgebaut ist, wobei Zugträger in der neutralen Biegeebene des Flachriemens angeordnet sind.The WO 2006/000500 A1 Accordingly, proposes a flat belt for elevator systems, which is constructed from a first, and an associated second, each extruded from PU belt, with tension members are arranged in the neutral bending plane of the flat belt.

In EP 1396458 A2 ist ein Riemen für eine Aufzugsanlage offenbart, welcher zur Erhöhung der Leistungsübertragung Längsrippen aufweist.In EP 1396458 A2 a belt for an elevator installation is disclosed which has longitudinal ribs for increasing the power transmission.

Diese Längsrippen können nur auf einer Seite oder auf beiden Seiten am Riemen angeordnet sein. Umlenk- und Antriebs-Scheiben, auf denen der Riemen angeordnet wird, können entsprechende Rillen aufweisen, sodass jeweils eine Rippe des Riemens in eine Rille der Scheibe zu liegen kommt. Dadurch ergibt sich eine seitliche Führung des Riemens auf der Scheibe, sodass auf seitliche Bordscheiben verzichtet werten kann.These longitudinal ribs can only be arranged on one side or on both sides of the belt. Deflection and drive pulleys, on which the belt is arranged, may have corresponding grooves, so that in each case one rib of the belt comes to lie in a groove of the disk. This results in a lateral guidance of the belt on the disc, so that it is possible to dispense with side flanges.

Aus DE 3527640 A1 wird ein Riemen, insbesondere ein Zahnriemen, zur Übertragung von Antriebskräften bekannt. Ein Verfahren zur Herstellung eines solchen Riemens umfasst zunächst die Herstellung eines Teilriemens mit in Längsrichtung liegenden Vertiefungen, in welche Zugträger eingebracht werden. Ein zweiter Teilriemen wird nun so auf den ersten Teilriemen mit den Zugträgern aufextrudiert, dass ein Riemen mit nebeneinanderliegenden Zugträgern entsteht.Out DE 3527640 A1 For example, a belt, in particular a toothed belt, is known for transmitting drive forces. A method for producing such a belt initially comprises the production of a partial belt with recesses lying in the longitudinal direction, into which tensile carriers are introduced. A second sub-belt is now so extruded on the first sub-belt with the tension members that a belt is formed with adjacent tension members.

Aus DE 19851761 A1 ist ein Keilriemen mit hoher Leistungsübertragung und geringer Längung bekannt, wie er in Motoren Anwendung findet.Out DE 19851761 A1 is a V-belt with high power transmission and low elongation known, as it finds application in engines.

In EP 0005076 A2 ist ein Keilriemen zur Kraftübertragung mit geringer Wärmedehnung beschrieben. Die Rippen sind quer zur Längsrichtung des Riemens angeordnet. In einem bereich unterhalb der Rippen verlaufen Zugträger in Längsrichtung des Riemens.In EP 0005076 A2 is described a V-belt for power transmission with low thermal expansion. The ribs are arranged transversely to the longitudinal direction of the belt. In an area below the ribs, tension members run in the longitudinal direction of the belt.

Zur Erhöhung des Anpressdruckes an das Riemenrad und damit der Traktions- bzw. Treibfähigkeit bei gleicher Radialkraft und damit gleicher Lagerbelastung und Riemenspannung ist es aus der EP 1 555 234 B1 bekannt, den flachriemenartigen Riemenkörper mit Keilrippen zu versehen, die mit weitgehend komplementär geformten Rillen auf der Lauffläche des Riemenrads zusammenwirken. Insbesondere liegen die schrägen Flanken der Keilrippen an ebenso schrägen Flanken des Riemenrads an. Gleichzeitig führen die Keilrippen den Riemen vorteilhaft in Querrichtung auf dem Riemenrad.To increase the contact pressure on the pulley and thus the traction or traction at the same radial force and thus same bearing load and belt tension it is from the EP 1 555 234 B1 known to provide the flat belt-like belt body with V-ribs which cooperate with largely complementary shaped grooves on the tread of the pulley. In particular, the oblique flanks of the V-ribs abut also inclined flanks of the pulley. At the same time, the V-ribs advantageously guide the belt transversely on the pulley.

Je spitzer dabei der Keilwinkel der einzelnen Rippen ist, desto grösser wird zwar einerseits der Anpressdruck bei gleicher Radialkraft und damit die Traktionsfähigkeit. Andererseits kann bei zu spitzen Keilwinkeln ein Verklemmen des Riemens in den Rillen des Riemenrads auftreten. Ein solches Verklemmen kann als Stick-Slip-Effekt den Riemen zu unerwünschten Schwingungen anregen, was gleichermassen Geräusche verursacht und die dynamische Belastung des Riemens und die Gefahr des Herauslaufens aus seinen Führungen erhöht. Im Extremfall kann das Verklemmen auch zu einem Versagen der Aufzuganlage führen, wenn sich der Riemen nur noch ruckartig oder gar nicht mehr aus den Rillen des Riemenrads löst.The sharper the wedge angle of the individual ribs, the greater becomes on the one hand the contact pressure with the same radial force and thus the traction capability. On the other hand, when the wedge angles are too acute, jamming of the belt in the grooves of the pulley may occur. Such jamming, as a stick-slip effect, can cause the belt to vibrate undesirably, causing noise as well as increasing the dynamic load on the belt and the risk of it running out of its guides. In extreme cases, the jamming can also lead to a failure of the elevator system when the belt only jerky or no longer releases from the grooves of the pulley.

Eine Aufgabe der vorliegenden Erfindung ist es daher, eine Aufzuganlage zur Verfügung zu stellen, bei der die Gefahr des Verklemmens zwischen Riemen und Riemenrad vermindert ist.An object of the present invention is therefore to provide an elevator system in which the risk of jamming between the belt and pulley is reduced.

Zur Lösung dieser Aufgabe ist eine Aufzuganlage nach dem Oberbegriff des Anspruchs 1 durch dessen kennzeichnende Merkmale weitergebildet. Gleichermassen wird zur Lösung dieser Aufgabe in Anspruch 13 ein Riemen für eine solche Aufzuganlage vorgeschlagen, in Anspruch 14 ein Verbund aus solchen Riemen und in Anspruch 17 ein Verfahren zur Montage eines solchen Verbunds in einer Aufzugsanlage geschützt.To solve this problem, an elevator system according to the preamble of claim 1 is further developed by its characterizing features. Similarly, to solve this problem in claim 13, a belt for such an elevator system proposed in claim 14, a composite of such belt and in claim 17, a method for assembling such a composite in an elevator system protected.

Eine Aufzugsanlage nach der vorliegenden Erfindung umfasst eine Aufzugkabine, einen Antrieb und, vorteilhafterweise, ein damit gekoppeltes Gegengewicht, das sich absenkt, wenn die Aufzugkabine vom Antrieb angehoben wird und umgekehrt. Weiterhin umfasst die Aufzuganlage eine Riemenanordnung mit wenigstens einem Riemen, wobei der Riemen einen Riemenkörper aufweist, in dem eine Zugträgeranordnung angeordnet ist und der auf einer ersten Querschnittseite in Richtung der Höhe des Riemens eine erste Kontaktfläche und auf einer der ersten Querschnittseite in Richtung der Höhe des Riemens gegenüberliegenden zweiten Querschnittseite eine zweite Kontaktfläche aufweist.An elevator installation according to the present invention comprises an elevator car, a drive and, advantageously, a counterweight coupled thereto, which lowers when the elevator car is lifted by the drive and vice versa. Furthermore, the A lift assembly comprising a belt assembly having at least one belt, the belt having a belt body in which a tension member assembly is disposed and a first contact surface on a first cross-sectional side in the direction of the height of the belt and second on a first cross-sectional side opposite the height of the belt Cross-sectional side having a second contact surface.

Der Antrieb umfasst bevorzugt eine oder mehrere Riemenräder, insbesondere eine oder mehrere Treibscheiben bzw. eine Treibwelle mit mehreren Treibzonen, die von den Riemen der Riemenanordnung zumindest teilweise umschlungen werden. Vorteilhafterweise umschlingen die Riemen die Riemenräder mit einem Umschlingungswinkel von 180°, vorzugsweise kleiner 180°, vorzugsweise kleiner 150°, vorzugsweise kleiner 120°, vorzugsweise 90°. Aufgrund der kleinen möglichen Biegeradien der Riemen ist es möglich den Antrieb mit einer separaten Treibscheibe zu verbinden haben oder aber Treibzonen in eine Abtriebswelle des Antriebs zu integrieren, so dass von einer Treibwelle gesprochen wird. Vorteilhafterweise ist der Durchmesser der Riemenräder kleiner/gleich 220mm, vorzugsweise kleiner 180mm, vorzugsweise kleiner 140mm, vorzugsweise kleiner 100mm, vorzugsweise kleiner 90mm, vorzugsweise kleiner 80mm auf. Die Zugkräfte werden von der Treibscheibe bzw. eine Treibwelle reib- und/oder formschlüssig in die Riemen einleiten. Sind Riemen der Riemenanordnung als Keilriemen ausgebildet, kann die Lauffläche der Riemenräder weitgehend komplementär geformte Rillen aufweisen, in die die Keilrippen eingreifen. Vorteilhaft liegen bei weitgehend komplementär geformten Rillen die Flanken der Keilrippen nur an den Flanken der Rillen reibschlüssig an; die Bereiche zwischen den Riemenflanken sind hingegen nicht im Kontakt mit den Rillengründen und Rillenspitzen.The drive preferably comprises one or more pulleys, in particular one or more traction sheaves or a drive shaft with a plurality of drive zones, which are at least partially wrapped by the belt of the belt assembly. Advantageously, the belts wrap around the belt wheels with a wrapping angle of 180 °, preferably less than 180 °, preferably less than 150 °, preferably less than 120 °, preferably 90 °. Due to the small possible bending radii of the belt, it is possible to connect the drive with a separate traction sheave or to integrate blowing zones in an output shaft of the drive, so that is referred to by a drive shaft. Advantageously, the diameter of the pulleys is less than or equal to 220mm, preferably less than 180mm, preferably less than 140mm, preferably less than 100mm, preferably less than 90mm, preferably less than 80mm. The tensile forces are frictionally and / or positively introduced into the belt of the traction sheave or a drive shaft. If belts of the belt arrangement are designed as V-belts, the running surface of the belt wheels can have largely complementary shaped grooves, in which the V-ribs engage. Advantageously, the flanks of the V-ribs are frictionally engaged only on the flanks of the grooves in largely complementarily shaped grooves; however, the areas between the belt flanks are not in contact with the groove bottoms and groove tips.

Der Riemenkörper besteht in einer vorteilhaften Ausbildung aus einem Elastomer, beispielsweise PU und/oder EPDM. Zum Schutz gegen Abrieb und dynamische Zerstörung kann der Riemenkörper eine oder mehrere Umhüllungen, beispielsweise aus Textilgewebe, aufweisen.The belt body consists in an advantageous embodiment of an elastomer, such as PU and / or EPDM. To protect against abrasion and dynamic destruction of the belt body may have one or more sheaths, for example made of textile fabric.

Die Zugträgeranordnung umfasst einen oder bevorzugt mehrere Zugträger, insbesondere Stahl- und/oder Kunststoff-Corde. Die Corde können als Einfachdrähte ausgebildet oder bevorzugt aus ein- oder mehrfach verseilten Drähten aufgebaut sein. Sie sind vorteilhaft in oder nahe der neutralen Faser des Riemenquerschnitts angeordnet, in der bei einer Umschlingung eines Riemenrads keine oder nur geringe Zug- oder Druckspannungen auftreten.The tension member arrangement comprises one or preferably several tension members, in particular steel and / or plastic cords. The cords may be formed as single wires or preferably constructed of single or multi-stranded wires. They are advantageously arranged in or near the neutral fiber of the belt cross-section, in which no or only slight tensile or compressive stresses occur in a looping of a pulley.

Ein Riemen kann als endloser Riemen oder, bevorzugt, als endlicher Riemen ausgebildet sein, der erst beim Auflegen durch ein Riemenschloss endlos gemacht wird und somit insbesondere bei schwierigen Umlenkverhältnissen beispielsweise durch Öffnungen geführt oder auf nicht fliegende gelagerte Riemenräder aufgelegt werden kann.A belt may be formed as an endless belt or, preferably, as a finite belt, which is made endless only when placed by a belt lock and thus can be guided, for example, through openings or placed on non-flying mounted pulleys, especially in difficult Umlenkverhältnissen.

Erfindungsgemäss ist das Verhältnis der maximalen Breite w zur maximalen Höhe t des Riemens im Bereich von 0,8 bis 1,0, vorzugsweise im Bereich von 0,9 bis 1,0, und besonders bei 1,0. Der Riemen ist somit höher als breit.According to the invention, the ratio of the maximum width w to the maximum height t of the belt is in the range of 0.8 to 1.0, preferably in the range of 0.9 to 1.0, and especially 1.0. The belt is thus higher than wide.

Unter teilweiser Aufgabe der einleitend geschilderten Vorteile von Flachriemen, insbesondere deren Flexibilität bei der Umschlingung von Riemenrädern, wird damit eine Aufzuganlage mit Riemen zur Verfügung gestellt, die in Riemenquerrichtung ein grösseres Flächenträgheitsmoment aufweisen und somit bezüglich Biegung um die Querachse steifer sind als herkömmliche Flachriemen. Solche Riemen erfahren daher bei der Umlenkung um ein Riemenrad eine höhere Vorspannung zurück in die gerade, unverformte Lage auf. Diese Vorspannung wirkt einem Verklemmen der Riemen an seitlichen Flanken des Riemenrads entgegen und reduziert damit vorteilhaft die Gefahr eines Verklemmen zwischen Riemen und Riemenrad. Dieser Effekt ist besonders vorteilhaft bei Keilrippenriemen, kann jedoch auch bei Flachriemen die Gefahr des Verklemmens mit seitlichen Führungswangen der Riemenräder vermindern.Under partial abandonment of the initially described advantages of flat belts, in particular their flexibility in the wrapping of pulleys, so that an elevator system is provided with belts available in belt transverse direction a larger area moment of inertia and thus are stiffer with respect to bending about the transverse axis than conventional flat belts. Therefore, such belts experience a higher bias back to the straight, undeformed position during deflection around a pulley. This bias counteracts jamming of the belt on lateral flanks of the pulley and thus advantageously reduces the risk of jamming between the belt and pulley. This effect is particularly advantageous in V-ribbed belts, but can also reduce the risk of jamming with lateral guide cheeks of the pulleys on flat belts.

Ein weiterer Vorteil liegt in dem zusätzlichen Volumen des Riemenkörpers in Richtung seiner Höhe. Dieses zusätzliche Volumen dämpft vorteilhaft Schwingungen und baut Stösse ab, was den Lauf eines solchen Riemens vergleichmässigt.Another advantage is the additional volume of the belt body in the direction of its height. This extra volume advantageously dampens vibrations and breaks down bumps, which makes the run of such a belt even.

Die Übertragung der Umfangskraft zwischen Zugträgern und Riemenrad geschieht unter kurzzeitiger Schubverformung des Riemenkörpers. Die dabei auftretenden Wechselverformungen führen auf lange Sicht zu einer Zerrüttung des Riemenkörpers und limitieren damit die Lebensdauer eines Riemens. Auch hier kann vorteilhaft das zusätzliche Volumen des Riemens in Richtung seiner Höhe einerseits die Schubverformungen reduzieren und andererseits dabei entstehende Wärme über das grössere Volumen und insbesondere über die grössere Oberfläche besser abführen, was insgesamt die Lebensdauer eines erfindungsgemässen Riemens vorteilhaft erhöht.The transmission of the circumferential force between tension members and pulley is done under short shear deformation of the belt body. The occurring alternating deformations lead in the long run to a disruption of the belt body and thus limit the life of a belt. Again, can advantageously reduce the additional volume of the belt in the direction of its height on the one hand, the shear deformations and on the other hand better dissipate the resulting heat over the larger volume and in particular on the larger surface, which increases the lifetime of a belt according to the invention advantageously.

In einer bevorzugten Ausführung der vorliegenden Erfindung ist die Zugträgeranordnung in der neutralen Faser etwa in der Mitte des Riemens angeordnet.In a preferred embodiment of the present invention, the tension member assembly is disposed in the neutral fiber at about the middle of the belt.

In einer weiteren bevorzugten Ausführung umfasst der Riemenkörper einen ersten Teilriemen, in dem der Zugträger angeordnet ist, und einen damit in einer Längsfläche fest verbundenen zweiten Teilriemen. Dieser kann auf den ersten Teilriemen aufextrudiert werden, so dass sich beide Teilriemen an ihrer Längsfläche miteinander verbinden. Dabei können, wie beispielsweise aus der WO 2006/000500 A1 bekannt, Nuten in der Längsfläche des ersten Teilriemens vom zweiten Teilriemen ausgefüllt werden. Gleichermassen können die beiden Teilriemen verklebt sein.In a further preferred embodiment, the belt body comprises a first part belt, in which the tension member is arranged, and a second part belt thus fixedly connected in a longitudinal surface. This can be extruded on the first sub-belt, so that both sub-belts connect to each other on their longitudinal surface. It can, as for example from the WO 2006/000500 A1 known to be filled grooves in the longitudinal surface of the first belt part of the second belt part. Likewise, the two partial belts can be glued.

In einer vorteilhaften Ausführung der vorliegenden Erfindung weisen beide Teilriemen im Wesentlichen dieselbe Höhe auf, so dass die Längsfläche etwa in der Mitte des Riemens angeordnet ist.In an advantageous embodiment of the present invention, both partial belts have substantially the same height, so that the longitudinal surface is arranged approximately in the middle of the belt.

Bevorzugt umgibt der erste Teilriemen die Zugträgeranordnung ganz oder teilweise. Im letzteren Fall umgibt auch der zweite Teilriemen die Zugträgeranordnung derart, dass sie vollständig im Riemen angeordnet ist.Preferably, the first sub-belt surrounds the Zugträgeranordnung completely or partially. In the latter case, the second sub-belt surrounds the Zugträgeranordnung such that it is completely arranged in the belt.

Sofern die Zugträgeranordnung vorteilhaft in der neutralen Faser angeordnet ist, in der bei einer Umlenkung um ein Riemenrad, i.e. einer Biegung um die Riemenquerachse keine Zug- und Druckspannungen auftreten, und die Zugträgeranordnung mehr im ersten Teilriemen angeordnet ist, erfährt der zweite Teilriemen bei der Umschlingung ein Riemenrad eine grössere Biegebeanspruchung und mithin grössere Zug- bzw. Druckspannungen. In einer vorteilhaften Ausführung ist daher der zweite Teilriemen weicher als der erste Teilriemen, so dass bei Biegung in der Zugträgerlage der zweite Teilriemen nicht durch Zugspannungen beschädigt wird, sondern diesen elastisch nachgiebt.. Insbesondere kann der zweite Teilriemen eine geringere Shore-Härte als der erste Teilriemen aufweist. So kann beispielsweise die Shore-Härte des ersten Teilriemens 85°Sh, die des zweiten 80°Sh betragen.Provided that the tension member assembly is advantageously disposed in the neutral fiber in which, when deflected about a pulley, i. a bending around the belt transverse axis no tensile and compressive stresses occur, and the Zugträgeranordnung is arranged more in the first sub-belt, experiences the second sub-belt in the looping a pulley a greater bending stress and thus greater tensile or compressive stresses. In an advantageous embodiment, therefore, the second sub-belt is softer than the first sub-belt, so that upon bending in the Zugträgerlage the second sub-belt is not damaged by tensile stresses, but this elastically nachgiebt .. In particular, the second sub-belt may have a lower Shore hardness than the first Partial belt has. Thus, for example, the Shore hardness of the first sub-belt 85 ° Sh, that of the second 80 ° Sh amount.

Die erste und/oder zweite Kontaktfläche kann bevorzugt eine Beschichtung mit einem bestimmten Reibwert aufweisen. Dieser Reibwert kann jeweils höher oder niedriger als der Reibwert des eigentlichen Riemenkörpers sein. Insbesondere kann die Beschichtung eine Polyamid ("PA")-Folie umfassen.The first and / or second contact surface may preferably have a coating with a specific coefficient of friction. This coefficient of friction can in each case be higher or lower than the coefficient of friction of the actual belt body. In particular, the coating may comprise a polyamide ("PA") film.

Beispielsweise kann auf der ersten Kontaktfläche, die zum Eingriff mit einer Treibscheibe bzw. Treibwelle vorgesehen ist, eine Beschichtung mit einem höheren Reibwert, auf der zweiten Kontaktfläche, die zum Eingriff mit einem Umlenkelement vorgesehen ist, eine Beschichtung mit niedrigerem Reibwert angeordnet sein. Alternativ zur Beschichtung kann auch eine Bedampfung oder eine Beflockung vorgesehen werden.For example, on the first contact surface, which is intended to engage with a drive shaft, a coating with a higher coefficient of friction, on the second contact surface, which is provided for engagement with a deflecting element, a coating with a lower coefficient of friction can be arranged. As an alternative to coating, vapor deposition or flocking may also be provided.

In einer besonders bevorzugten Ausführung weist die erste und/oder zweite Kontaktfläche wenigstens eine, vorzugsweise zwei Rippen, insbesondere Keilrippen auf. Gleichermassen sind auch dreieck- oder halbkreisförmige Rippenquerschnitte möglich. Bei dieser besonders bevorzugten Ausführung können vorteilhaft die Laufflächen von Riemenrädern, die von den Riemen umschlungen werden, zu den Rippen weitgehend komplementäre Rillen aufweisen, in die die Rippen eingreifen. Hierdurch kann bei gleicher Radialkraft, i.e. gleicher Riemenvorspannung bzw. Lagerbelastung ein höherer Anpressdruck und damit eine höhere Traktionsfähigkeit erreicht werden.In a particularly preferred embodiment, the first and / or second contact surface on at least one, preferably two ribs, in particular V-ribs. Similarly, triangular or semicircular rib cross sections are possible. In this particularly preferred embodiment can advantageously have the running surfaces of pulleys, which are wrapped by the belt, to the ribs largely complementary grooves, in which engage the ribs. This can be the same radial force, ie the same Belt preload or bearing load a higher contact pressure and thus a higher traction capability can be achieved.

Bevorzugt weisen die Rippen einen keilförmigen Querschnitt mit einem Flankenwinkel von 60° bis 120° auf, wobei der Bereich von 80° bis 100° zu bevorzugen ist. Als Flankenwinkel ist der zwischen beiden Seitenflächen (Flanken) einer keilförmigen Rippe vorhandene Winkel bezeichnet. Jedoch sind aufgrund der höheren Steifigkeit gegenüber Biegungen um die Riemenquerachse auch Flankenwinkel unter 60°, also spitzere Winkel realisierbar.Preferably, the ribs have a wedge-shaped cross section with a flank angle of 60 ° to 120 °, wherein the range of 80 ° to 100 ° is preferable. The flank angle is the angle existing between both side surfaces (flanks) of a wedge-shaped rib. However, because of the higher rigidity against bends around the belt transverse axis, flank angles below 60 °, ie, more acute angles, can also be realized.

Wenn vorteilhaft nicht nur die erste, sondern auch die zweite Kontaktfläche eine oder mehrere Rippen aufweist, kann der Riemen auch bei gegensinniger Umlenkung um zwei Riemenräder, bei der er das erste Riemenrad mit seiner ersten Kontaktfläche, das zweite Riemenrad mit seiner zweiten Kontaktfläche berührt, bei der Umschlingung beider Riemenräder in Querrichtung geführt werden, was vorteilhaft ein Herauslaufen des Riemens auch aus reinen Umlenkrollen vermeiden kann. Die Anzahl der Rippen auf beiden Kontaktflächen muss nicht notwendig identisch sein. Sofern beispielsweise das erste Riemenrad eine Treibscheibe bzw. Treibwelle, das zweite Riemenrad eine Umlenkrolle ist, kann die zweite Kontaktfläche, über die keine Zugkräfte aufgeprägt werden, weniger Rippen aufweisen. Insbesondere kann die erste Kontaktfläche zwei und die zweite Kontaktfläche eine Rippe aufweisen. Natürlich kann die zweite Kontaktfläche auch unkonturiert flach ausgebildet sein.If advantageously not only the first, but also the second contact surface has one or more ribs, the belt can also in opposite directions around two pulleys, in which it contacts the first pulley with its first contact surface, the second pulley with its second contact surface at the wrap of both pulleys are guided in the transverse direction, which can advantageously avoid running out of the belt even from pure pulleys. The number of ribs on both contact surfaces does not necessarily have to be identical. For example, if the first pulley is a traction sheave or drive shaft, the second pulley is a deflection roller, the second contact surface, over which no tensile forces are applied, have fewer ribs. In particular, the first contact surface may have two ribs and the second contact surface may have a rib. Of course, the second contact surface may also be formed flat without contours.

Insbesondere, wenn die erste und zweite Kontaktfläche unterschiedlich sind, beispielsweise unterschiedliche Reibwerte aufweisen, oder gleichermassen, wenn der erste und zweite Teilriemen nicht völlig identisch sind, beispielsweise die Zugträger mehr im ersten Teilriemen angeordnet sind und/oder dieser eine andere Härte als der zweite Zugträger aufweist, können die erste und zweite Kontaktfläche verschiedene Farben aufweisen, um ein korrektes Auflegen des Riemens zu gewährleisten. Hierzu können beispielsweise beide Kontaktflächen unterschiedlich eingefärbt oder beschichtet sein. Sofern der Riemen aus zwei Teilriemen zusammengesetzt ist, können beide Teilriemen aus Materialien unterschiedlicher Farbe bestehen.In particular, if the first and second contact surface are different, for example, have different coefficients of friction, or equally, if the first and second part belts are not completely identical, for example, the tension members are arranged more in the first sub-belt and / or this a different hardness than the second tension member The first and second contact surfaces may have different colors to ensure correct placement of the belt. For this purpose, for example, both contact surfaces dyed or coated differently be. If the belt is composed of two sub-belts, both sub-belts can be made of materials of different colors.

In einer bevorzugten Ausführung umfasst die Riemenanordnung mehrere Riemen, die in Richtung ihrer Breite nebeneinander angeordnet sind. Vorteilhafterweise können diese Riemen formschlüssig miteinander verbunden sein. Hierzu kann beispielsweise ein erster Riemen einen in Richtung seiner Breite hervorstehenden Vorsprung aufweisen, der in eine entsprechende Aussparung eines daneben angeordneten zweiten Riemens eingreift. Derart können die Riemen bei der Montage einfach und lösbar miteinander verbunden werden, was das Auflegen und Abnehmen der schmaleren einzelnen Riemen gegenüber der resultierenden Riemenanordnung vereinfacht. Gleichermassen können die Riemen auch über Spannelemente miteinander verbunden oder unlösbar aneinander befestigt, beispielsweise miteinander verklebt werden.In a preferred embodiment, the strap assembly comprises a plurality of straps arranged side by side in the direction of their width. Advantageously, these belts can be positively connected to each other. For this purpose, for example, a first belt may have a projecting in the direction of its width projection which engages in a corresponding recess of a second belt arranged next thereto. In this way, the belts can be easily and releasably connected to each other during assembly, which simplifies the laying and removal of the narrower individual belts relative to the resulting belt arrangement. Similarly, the belt can also be connected to each other via clamping elements or permanently attached to each other, for example, glued together.

Zur Herstellung eines erfindungsgemässen Riemens wird vorteilhaft ein Verfahren vorgeschlagen, das folgende Schritte umfasst: Extrudieren des ersten Teilriemens derart, dass er die Zugträgeranordnung wenigstens teilweise umgibt, und Aufextrudieren des zweiten auf den ersten Teilriemen derart, dass die Zugträgeranordnung vollständig im Riemen angeordnet ist. Hierdurch ist es vorteilhaft möglich, auch mit bestehenden Extrudern, die auf die Herstellung von Flachriemen mit einem Breiten/Höhenverhältnis grösser eins ausgelegt sind, mit geringfügigen Modifikationen erfindungsgemässe Riemen mit einem Breiten/Höhenverhältnis herzustellen, das im Wesentlichen gleich eins ist. Durch das Aufextrudieren verbinden sich die beiden Teilriemen thermisch, was eine festen und dauerhaften Verbindung bewirkt.To produce a belt according to the invention, a method is advantageously proposed which comprises the following steps: extruding the first part belt so as to at least partly surround the tension member arrangement, and extruding the second part onto the first part belt such that the tension member arrangement is completely arranged in the belt. This makes it advantageously possible, even with existing extruders, which are designed for the production of flat belts with a width / height ratio greater than one to produce with slight modifications inventive belt with a width / height ratio, which is substantially equal to one. By extruding the two partial belts connect thermally, which causes a solid and permanent connection.

Zur Montage eines erfindungsgemässen Riemens in einer Aufzugsanlage wird vorgeschlagen, mehrere Riemen über ein Montageband zu einem Verbund miteinander zu verbinden. Vorteilhafterweise sind die Riemen dabei vom Montageband zumindest teilweise umgeben und/oder das Montageband ist auf einer zweiten Kontaktfläche mit den Riemen verbunden. Auch ist es besonders vorteilhaft, wenn die Riemen in definierten Montageabständen zueinander mit dem Montageband verbunden sind.For mounting a belt according to the invention in an elevator installation, it is proposed to connect a plurality of belts via an assembly line to form a composite. Advantageously, the belts are at least partially surrounded by the assembly line and / or the assembly line is on a second contact surface with the belt connected. It is also particularly advantageous if the belts are connected to one another in defined assembly intervals with the assembly line.

Das eigentliche Verfahren zur Montage des Verbunds in einer Aufzugsanlage umfasst das Legen des Verbunds auf Riemenräder und das Fixieren der Riemen an Enden des Verbunds mit Riemenfixpunkten. Vorteilhafterweise werden die Riemen des Verbunds gemäss den Montageabständen auf Riemenräder gelegt. Dabei ist es besonders vorteilhaft, wenn die Riemen des Verbunds in Rillen mindestens einer Kabinen-Umlenkrolle und/oder Rillen mindestens einer Treibscheibe bzw. Treibwelle und/oder Rillen mindestens einer Gegengewichtstragrolle gelegt werden. Auch ist es für die Montage einfach und praktisch, den Verbund als Schlaufe in den Aufzugsschacht zu transportieren und von der Schlaufe abzurollen.The actual method of assembling the composite in an elevator installation involves placing the composite on pulleys and fixing the belts to ends of the composite with belt break points. Advantageously, the belts of the composite are laid on pulleys according to the mounting distances. It is particularly advantageous if the belts of the composite are placed in grooves of at least one cabin deflection pulley and / or grooves of at least one traction sheave or drive shaft and / or grooves of at least one counterweight support roller. Also, it is easy and convenient for assembly to transport the composite as a loop in the elevator shaft and unroll from the loop.

Weitere Aufgaben, Merkmale und Vorteile ergeben sich aus den Unteransprüchen und den nachfolgend beschriebenen Ausführungsbeispiele. Hierzu zeigt:

Fig. 1
einen zu einer Aufzugskabinenfront parallelen Schnitt durch eine Aufzugsanlage nach einer Ausführung der vorliegenden Erfindung;
Fig. 2
einen Schnitt durch einen Riemen der Aufzuganlage aus Fig. 1 nach einer ersten Ausführung der vorliegenden Erfindung in Form eines Keilrippenriemens;
Fig. 3
einen Schnitt durch einen Riemen der Aufzuganlage aus Fig. 1 nach einer zweiten Ausführung der vorliegenden Erfindung in Form eines Keilrippenriemens;
Fig. 4
einen Schnitt durch eine Riemenanordnung der Aufzuganlage aus Fig. 1 nach einer dritten Ausführung der vorliegenden Erfindung;
Fig. 5
einen Schnitt durch einen Riemen der Aufzuganlage aus Fig. 1 nach einer vierten Ausführung der vorliegenden Erfindung in Form eines Keilrippenriemens;
Fig. 6
einen Schnitt durch einen Verbund aus mehreren Riemen der ersten Ausführung der vorliegenden Erfindung gemäss Fig. 2;
Fig. 7
eine Aufzugsanlage aus Fig. 1 in einem ersten Montageschritt;
Fig. 8
eine Aufzugsanlage aus Fig. 1 in einem zweiten Montageschritt;
Fig. 9
eine Aufzugsanlage aus Fig. 1 in einem dritten Montageschritt;
Fig. 10
einen Schnitt durch einen Riemen der Aufzuganlage aus Fig. 1 nach einer fünften Ausführung der vorliegenden Erfindung in Form eines Keilrippenriemens; und
Fig. 11
einen Schnitt durch einen Riemen der Aufzuganlage aus Fig. 1 nach einer sechsten Ausführung der vorliegenden Erfindung in Form eines Keilrippenriemens.
Other objects, features and advantages will become apparent from the dependent claims and the embodiments described below. This shows:
Fig. 1
a parallel to an elevator car front section through an elevator system according to an embodiment of the present invention;
Fig. 2
a section through a belt of the elevator system Fig. 1 according to a first embodiment of the present invention in the form of a V-ribbed belt;
Fig. 3
a section through a belt of the elevator system Fig. 1 according to a second embodiment of the present invention in the form of a V-ribbed belt;
Fig. 4
a section through a belt assembly of the elevator system Fig. 1 according to a third embodiment of the present invention;
Fig. 5
a section through a belt of the elevator system Fig. 1 according to a fourth embodiment of the present invention in the form of a V-ribbed belt;
Fig. 6
a section through a composite of several belts of the first embodiment of the present invention according to Fig. 2 ;
Fig. 7
an elevator system Fig. 1 in a first assembly step;
Fig. 8
an elevator system Fig. 1 in a second assembly step;
Fig. 9
an elevator system Fig. 1 in a third assembly step;
Fig. 10
a section through a belt of the elevator system Fig. 1 according to a fifth embodiment of the present invention in the form of a V-ribbed belt; and
Fig. 11
a section through a belt of the elevator system Fig. 1 according to a sixth embodiment of the present invention in the form of a V-ribbed belt.

Fig. 1 zeigt einen Schnitt durch ein in einem Aufzugsschacht 1 installiertes Aufzugssystem nach einer Ausführung der vorliegenden Erfindung. Dieses umfasst einen in einem Aufzugsschacht 1 fixierten Antrieb 2 mit einer Treibscheibe bzw. Treibwelle 4.1, eine an Kabinenführungsschienen 5 geführte Aufzugskabine 3 mit unterhalb des Kabinenbodens 6 angebrachten Umlenkrollen in Form von Kabinentragrollen 4.2, ein an Gegengewichtsführungsschienen 7 geführtes Gegengewicht 8 mit einer weiteren Umlenkrolle in Form einer Gegengewichtstragrolle 4.3, und einen als Keilrippenriemen 12 ausgebildeten Tragriemen für die Aufzugskabine 3 und das Gegengewicht 8, der die Antriebskraft von der Treibscheibe bzw. Treibwelle 4.1 der Antriebseinheit 2 auf die Aufzugskabine und das Gegengewicht überträgt. Fig. 1 shows a section through an installed in an elevator shaft 1 elevator system according to an embodiment of the present invention. This comprises a drive 2 fixed in an elevator shaft 1 with a traction sheave or drive shaft 4.1, an elevator car 3 guided on car guide rails 5 with deflection rollers in the form of car support rollers 4.2 mounted below the car floor 6, a counterweight 8 guided on counterweight guide rails 7 with a further deflection roller Shape of a counterweight support roller 4.3, and designed as a V-ribbed belt 12 strap for the elevator car 3 and the counterweight 8, which transmits the driving force from the traction sheave or drive shaft 4.1 of the drive unit 2 to the elevator car and the counterweight.

Der Keilrippenriemen 12 ist an einem seiner Enden unterhalb der Treibscheibe bzw. Treibwelle 4.1 an einem ersten Riemenfixpunkt 10 befestigt. Von diesem aus erstreckt er sich abwärts bis zu der Gegengewichtstragrolle 4.3, umschlingt diese und erstreckt sich von dieser aus zur Treibscheibe bzw. Treibwelle 4.1, umschlingt diese und verläuft entlang der gegengewichtsseitigen Kabinenwand abwärts, umschlingt auf beiden Seiten der Aufzugskabine je eine unterhalb der Aufzugskabine 3 angebrachte Kabinentragrolle 4.2 um je 90° und verläuft entlang der dem Gegengewicht 8 abgewandten Kabinenwand aufwärts zu einem zweiten Riemenfixpunkt 11.The V-ribbed belt 12 is fastened at one of its ends below the traction sheave or drive shaft 4.1 to a first belt fixing point 10. From this it extends down to the counterweight roller 4.3, wraps around this and extends from this to the traction sheave or propeller shaft 4.1, wraps around them and runs along the counterweight-side cabin wall down, wraps around each on both sides of the elevator car mounted below the elevator car 3 Kabinentragrolle 4.2 by 90 ° and extends along the counterweight 8 facing away from the cabin wall up to a second belt fixing point eleventh

Die Ebene der Treibscheibe bzw. Treibwelle 4.1 kann rechtwinklig zur gegengewichtsseitigen Kabinenwand angeordnet sein und ihre Vertikalprojektion ausserhalb der Vertikalprojektion der Aufzugskabine 3 liegen. Es ist daher zu bevorzugen, dass die Treibscheibe bzw. Treibwelle 4.1 einen geringen Durchmesser von kleiner/gleich 220mm, vorzugsweise kleiner 180mm, vorzugsweise kleiner 140mm, vorzugsweise kleiner 100mm, vorzugsweise kleiner 90mm, vorzugsweise kleiner 80mm aufweist, damit der Abstand zwischen der linksseitigen Kabinenwand und der dieser gegenüber liegenden Wand des Aufzugsschachts 1 möglichst klein sein kann. Ausserdem ermöglicht ein geringer Durchmesser der Treibscheibe bzw. Treibwelle 4.1 die Verwendung eines getriebelosen Antriebsmotors mit relativ geringem Antriebsdrehmoment als Antriebseinheit 2. Die Riemenfixpunkte 10, 11 sind dem Fachmann bekannte Vorrichtungen, bei denen der Keilrippenriemen 12 zwischen einem Keil und ein Gehäuse geklemmt wird.The plane of the traction sheave or drive shaft 4.1 may be arranged at right angles to the counterweight-side cabin wall and their vertical projection outside the vertical projection of the elevator car 3 are. It is therefore preferable that the traction sheave or drive shaft 4.1 has a small diameter of less than / equal to 220 mm, preferably less than 180 mm, preferably less than 140 mm, preferably less than 100 mm, preferably less than 90 mm, preferably less than 80 mm, so that the distance between the left-hand cabin wall and the opposite wall of the elevator shaft 1 can be as small as possible. In addition, a small diameter of the traction sheave or drive shaft 4.1 allows the use of a gearless drive motor with relatively low drive torque as the drive unit 2. The belt break points 10, 11 are known in the art devices in which the V-ribbed belt 12 is clamped between a wedge and a housing.

Fig. 2 zeigt einen Schnitt durch einen Riemen der Aufzuganlage aus Fig. 1 nach einer ersten Ausführung der vorliegenden Erfindung in Form eines Keilrippenriemens 12. Dieser weist einen Riemenkörper 20 auf, der einen ersten Teilriemen 20.1 und einen zweiten Teilriemen 20.2 umfasst. Beide Teilriemen sind in einer Längsfläche 20.3 fest miteinander verbundenen. In Fig. 2 ist die Längsfläche 20.3 schematisch als eben eingezeichnet. Obwohl nicht dargestellt, kann die Längsfläche eines Teilkörpers jedoch Ausnehmungen aufweisen, in die Ausformungen des anderen Teilkörpers eingreifen, um die Verbindung beider Teilkörper zu verstärken. Fig. 2 shows a section through a belt of the elevator system Fig. 1 according to a first embodiment of the present invention in the form of a V-ribbed belt 12. This has a belt body 20 which comprises a first part belt 20.1 and a second part belt 20.2. Both partial belts are firmly connected together in a longitudinal surface 20.3. In Fig. 2 is the longitudinal surface 20.3 shown schematically as flat. Although not shown, the longitudinal surface of a partial body may however have recesses into which formations of the other partial body engage in order to reinforce the connection between the two partial bodies.

Eine erste Kontaktfläche 20.4 des ersten Teilkörpers ist zum Kontakt mit der Treibscheibe bzw. Treibwelle 4.1 und der Gegengewichtstragrolle 4.3 vorgesehen. Sie weist hierzu zwei Keilrippen 20.6 auf, die in hierzu weitgehend komplementäre Rillen der Riemenräder 4.1, 4.3 eingreifen können und durch diese seitlich geführt werden. Hierdurch erhöht sich vorteilhaft der Anpressdruck und damit die Traktionsfähigkeit des Antriebs 2.A first contact surface 20.4 of the first part body is provided for contact with the traction sheave or drive shaft 4.1 and the counterweight carrying roller 4.3. She has two V-ribs 20.6, which can engage in this largely complementary grooves of the pulleys 4.1, 4.3 and are guided by this side. This advantageously increases the contact pressure and thus the traction capability of the drive 2.

Eine zweite Kontaktfläche 20.6 des zweiten Teilkörpers 20.2 ist zum Kontakt mit den Kabinentragrollen 4.2 vorgesehen und weist hierzu in analoger Weise zwei Keilrippen 20.6 auf, die in hierzu weitgehend komplementäre Rillen der Riemenräder 4.2 eingreifen können und durch diese seitlich geführt werden. In einer zweiten, in Fig. 3 dargestellten Ausführung weist die zweite Kontaktfläche nur eine Rippe 20.6 auf, die zur Seitenführung des Riemens 12 in den Kabinentragrollen 4.2 ausreicht.A second contact surface 20.6 of the second partial body 20.2 is provided for contact with the Kabinentragrollen 4.2 and has for this purpose in an analogous manner two V-ribs 20.6, which can engage in this largely complementary grooves of the pulleys 4.2 and are guided by these laterally. In a second, in Fig. 3 illustrated embodiment, the second contact surface only a rib 20.6, which is sufficient for lateral guidance of the belt 12 in the cab support rollers 4.2.

Im ersten Teilriemen 20.1 sind vier Zugträger 21 in Form von verseilten Stahldrähten nebeneinander angeordnet. Gleichwohl können auch mehr, beispielsweise fünf Zugträger oder weniger, beispielsweise 3 Zugträger nebeneinander angeordnet sein. Ebenso können die einzelnen Zugträger auch in Richtung der Höhe des Riemens 12 versetzt zueinander angeordnet sein.In the first part belt 20.1 four tension members 21 in the form of stranded steel wires are arranged side by side. However, more, for example, five tension members or less, for example, 3 tension members may be arranged side by side. Likewise, the individual tension members can also be offset from one another in the direction of the height of the belt 12.

Die Zugträger sind in der neutralen Faser des Riemenkörpers 20 angeordnet, in der keine Zug- oder Druckspannungen auftreten, wenn der Riemen 12 ein Riemenrad 4, insbesondere die Treibscheibe bzw. Treibwelle 4.1 umschlingt. Aufgrund des grösseren Abstandes der zweiten Kontaktfläche 20.5 von dieser neutralen Faser sind die bei der Umschlingung im zweiten Teilriemen 20.2 auftretenden Zugspannungen grösser als die im ersten Teilriemen 20.1 vorliegenden Druckspannungen. Daher ist als Material für den zweiten Teilriemen ein weicheres Elastomer gewählt, im Ausführungsbeispiel mit einer Shore-Härte von 80°Sh gegenüber einer Shore-Härte von 85°Sh des ersten Teilriemens. In der zweiten Ausführung nach Fig. 3 ist der zweite Teilriemen im Querschnitt kleiner als der erste und weist insbesondere nur eine Keilrippe 20.6 auf. Auch hierdurch ist er entsprechend weicher als der erste Teilriemen.The tensile carriers are arranged in the neutral fiber of the belt body 20, in which no tensile or compressive stresses occur when the belt 12 wraps around a pulley 4, in particular the traction sheave or drive shaft 4.1. Due to the greater distance of the second contact surface 20.5 from this neutral fiber, the tensile stresses occurring during the wrapping in the second partial belt 20.2 are greater than the compressive stresses present in the first partial belt 20.1. Therefore, a softer elastomer is selected as the material for the second sub-belt, in the embodiment with a Shore hardness of 80 ° Sh against a Shore hardness of 85 ° Sh of the first sub-belt. In the second execution after Fig. 3 the second sub-belt is smaller in cross-section than the first and has in particular only one V-rib 20.6. This also makes it correspondingly softer than the first sub-belt.

Die erste Kontaktfläche 20.4 weist wenigstens in den Bereichen ihrer Keilrippen 20.6, die mit den Flanken der Treibscheibe bzw. Treibwelle 4.1 in Reibschluss treten, eine Beschichtung 20.7 mit einer PA-Folie auf. Vorteilhaft ist die gesamte erste Kontaktfläche 20.4 in einem kontinuierlichen oder diskontinuierlichen Verfahren beschichtet, was die Herstellung vereinfacht. Alternativ zur Beschichtung 20.7 kann auch eine Bedampfung 20.7 oder eine Beflockung 20.7 vorgesehen werden. Die Bedampfung ist beispielsweise eine Metallbedampfung. Die Beflockung ist beispielsweise eine Beflockung mit kurzen Kunst- oder Naturfasern. Auch diese Bedampfung oder Beflockung kann sich über die gesamte erste Kontaktfläche 20.4 erstrecken und in kontinuierlichen oder diskontinuierlichen Verfahren erfolgen. Prinzipiell ist es bei weitgehend komplementär geformten Paarungen von Keilrippen und Rillen, bei denen nur die Flanken der Keilrippen reibschlüssig an den Rillen anliegen auch möglich, nur diese Flanken der Keilrippen mit einer Beschichtung 20.7 oder Bedampfung 20.7 oder Beflockung 20.7 zu versehen, so dass die Bereiche zwischen den Riemenflanken die ja nicht im Kontakt mit den Rillengründen und Rillenspitzen stehen, unbeschichtet sind.The first contact surface 20.4 has, at least in the regions of its V-ribs 20.6, which come into frictional engagement with the flanks of the traction sheave or drive shaft 4.1, a coating 20.7 with a PA film. Advantageously, the entire first contact surface 20.4 is coated in a continuous or discontinuous process, which simplifies the production. As an alternative to the coating 20.7, it is also possible to provide a vaporization 20.7 or a flocking 20.7. The vapor deposition is, for example, a metal vaporization. The flocking is, for example, a flocking with short synthetic or natural fibers. These steaming or flocking may extend over the entire first contact surface 20.4 and take place in continuous or discontinuous processes. In principle, it is possible with largely complementary shaped pairings of V-ribs and grooves, in which only the flanks of the V-ribs frictionally abut the grooves, only these flanks of the V-ribs with a coating 20.7 or steaming 20.7 or flock 20.7 to be provided so that the areas between the belt flanks that are not in contact with the grooves and groove tips, are uncoated.

Erfindungsgemäss liegt das Verhältnis der maximalen Breite w zur maximalen Höhe t des Riemenkörpers einschliesslich der Keilrippen 20.6 im Bereich von 0,8 bis 1,0. Im Ausführungsbeispiel ist das Verhältnis im Wesentlichen gleich eins. Dadurch wird der Riemen 12 - auch bei der in Fig. 3 gezeigten zweiten Ausführung - gegenüber Biegungen um seine Querachse steifer. Die daraus resultierende höhere Vorspannung bei Umschlingung eines Riemenrads mit Rillen vermindert die Gefahr eines Verklemmens des Riemens im Riemenrad. Andere Verhältnisse der maximalen Breite w zur maximalen Höhe t des Riemenkörpers einschliesslich der Keilrippen 20.6 im Bereich von 0,6 bis 1,0 sind bei Kenntnis der vorliegenden Erfindung natürlich auch möglich.According to the invention, the ratio of the maximum width w to the maximum height t of the belt body including the V-ribs 20.6 is in the range of 0.8 to 1.0. In the embodiment, the ratio is substantially equal to one. As a result, the belt 12 - also in the in Fig. 3 shown second embodiment - stiffer compared to bends about its transverse axis. The resulting higher preload when looping a pulley with grooves reduces the risk of jamming of the belt in the pulley. Other ratios of the maximum width w to the maximum height t of the belt body including the V-ribs 20.6 in the range of 0.6 to 1.0 are of course also possible with knowledge of the present invention.

Der zweite Teilriemen dämpft Schwingungen und absorbiert Stösse. Darüber hinaus reduziert er Schubspannungen im ersten Teilriemen, die bei der Übertragung von Zugkräften auf die Zugträger auftreten. Schliesslich erhöht er über sein zusätzliches Volumen und seine Oberfläche die Wärmeabgabe. Damit erhöht sich vorteilhaft die Lebensdauer eines erfindungsgemässen Riemens.The second belt dampens vibrations and absorbs shocks. In addition, it reduces shear stresses in the first sub-belt, which occur in the transmission of tensile forces on the tension members. Finally, it increases over its extra volume and its Surface heat dissipation. This advantageously increases the service life of a belt according to the invention.

Die Treibscheibe bzw. Treibwelle 4.1, die Kabinentragrollen 4.2 und die Gegengewichtstragrolle 4.3 sind an ihrer Peripherie mit Rillen versehen, die weitgehend komplementär zu den Rippen des Keilrippenriemens 12 geformt sind. Wo der Keilrippenriemen 12 eines der Riemenräder 4.1, 4.2 oder 4.3 zumindest teilweise umschlingt, liegen seine Rippen in korrespondierenden Rillen des Riemenrads, wodurch eine ausgezeichnete Führung des Keilrippenriemens auf diesem Riemenrad gewährleistet ist. Ausserdem wird durch eine zwischen den Rillen der Treibscheibe bzw. Treibwelle 4.1 und den Rippen des Keilrippenriemens 12 entstehende Keilwirkung die Traktionsfähigkeit verbessert.The traction sheave or drive shaft 4.1, the cage support rollers 4.2 and the counterweight support roller 4.3 are provided at their periphery with grooves which are formed largely complementary to the ribs of the V-ribbed belt 12. Where the V-ribbed belt 12 at least partially wraps around one of the pulleys 4.1, 4.2 or 4.3, its ribs lie in corresponding grooves of the pulley, thereby ensuring excellent guidance of the V-ribbed belt on this pulley. In addition, the traction capability is improved by a wedge effect between the grooves of the traction sheave or drive shaft 4.1 and the ribs of the V-ribbed belt 12.

Bei der Umschlingung der Kabinentragrollen 4.2 unterhalb der Aufzugskabine 3 ist daher im Gegensatz zu herkömmlichen Aufzuganlagen auch eine seitliche Führung zwischen den Kabinentragrollen 4.2 und dem Keilrippenriemen 12 gegeben, da der Keilrippenriemen auch Rippen auf seiner von den Kabinentragrollen 4.2 abgewandten Seite aufweist.When looping the cab support rollers 4.2 below the elevator car 3, therefore, in contrast to conventional elevator systems, there is also lateral guidance between the cab support rollers 4.2 and the V-ribbed belt 12 since the V-ribbed belt also has ribs on its side facing away from the cab support rollers 4.2.

In der Ausführungsform gemäss Fig. 5 sind die Zugträger 21 in der neutralen Faser etwa in der Mitte des Riemens 12 angeordnet. In dieser Ausführungsform besteht der Riemenkörper 20 nicht aus Teilriemen. Das Elastomer-Material ist derart auf die Zugträgeranordnung 21 aufextrudiert, dass es diese ganz oder teilweise umgibt und die Zugträgeranordnung 21 in etwa mittig zur maximalen Höhe t im Riemenkörper 20 zu liegen kommt. Ansonsten entspricht diese Ausführungsform denjenigen gemäss Fig. 2 bis 4.In the embodiment according to Fig. 5 the tension members 21 are arranged in the neutral fiber approximately in the middle of the belt 12. In this embodiment, the belt body 20 does not consist of partial belts. The elastomeric material is extruded onto the tension member assembly 21 in such a way that it completely or partially surrounds it and the tension member assembly 21 comes to lie approximately in the center of the maximum height t in the belt body 20. Otherwise, this embodiment corresponds to those according to Fig. 2 to 4 ,

Obwohl in Fig. 1 nicht erkennbar, kann eine Riemenanordnung in einer erfindungsgemässen Aufzuganlage mehr als einen Riemen umfassen. Fig. 4 zeigt hierzu eine bevorzugte Ausführung einer solchen Riemenanordnung. Dabei greift je wenigstens ein Vorsprung 20.8 eines ersten Riemens 12.1 in eine entsprechende Aussparung 20.9 eines benachbarten zweiten Riemens 12.2 ein, was die seitliche Führung weiter verbessert und einem Verdrillen bzw. Verbiegen der gesamten Riemenanordnung vor allem im freien Trumbereich vermindert. In einer nicht dargestellten alternativen Ausgestaltung kann auch der zweite Riemen 12.2 an beiden Querseiten Vorsprünge aufweisen, die in entsprechende Aussparungen der benachbarten Riemen eingreifen. Vorteilhaft weisen die äussersten Riemen einer durch Vorsprünge miteinander verbundenen Riemenanordnung keine Aussparung bzw. keinen Vorsprung auf.Although in Fig. 1 not recognizable, a belt arrangement in an elevator installation according to the invention can comprise more than one belt. Fig. 4 shows a preferred embodiment of such a belt assembly. In each case engages at least one projection 20.8 of a first belt 12.1 in a corresponding recess 20.9 of an adjacent second belt 12.2, which is the lateral guidance further improved and reduced twisting or bending of the entire belt assembly, especially in the free Trumbereich. In an alternative embodiment, not shown, and the second belt 12.2 may have on both lateral sides of projections which engage in corresponding recesses of the adjacent belt. Advantageously, the outermost belts of a belt arrangement interconnected by projections have no recess or projection.

Durch eine solche Riemenanordnung kann vor Ort eine Riemenanordnung beliebiger Breite einfach und rasch aus schmalen, leicht zu handhabenden einzelnen Riemen zusammengesetzt werden, was die Herstellung und Lagerhaltung, den Transport und die (De)Montage deutlich vereinfacht.Such a belt arrangement allows a belt arrangement of arbitrary width to be easily and quickly assembled on site from narrow, easy-to-handle individual belts, which considerably simplifies the production and storage, transport and (dis) assembly.

Zur Herstellung eines erfindungsgemässen Riemens kann zunächst des erste Teilriemens 20.1 derart extrudiert werden, dass er die Zugträgeranordnung 21 ganz oder teilweise umgibt. In einem anschliessenden zweiten Schritt kann dann der zweiten Teilriemen 20.2 derart auf den ersten Teilriemen 20.1 aufextrudiert werden, dass die Zugträgeranordnung vollständig im Riemen angeordnet ist. Damit ist es vorteilhaft möglich, vorhandene Maschinen, die zur Herstellung eines Riemens, dessen Breite seine Höhe übersteigt, etwa in Form des ersten Teilriemens 20.1, mit geringen Modifikationen auch zur Herstellung eines erfindungsgemässen Riemens mit einem Breiten/Höhenverhältnis von ungefähr 1 einzusetzen.To produce a belt according to the invention, the first part belt 20.1 can first be extruded in such a way that it completely or partially surrounds the tension member arrangement 21. In a subsequent second step, the second sub-belt 20.2 can then be extruded onto the first sub-belt 20.1 in such a way that the tension-carrier arrangement is completely arranged in the belt. Thus, it is advantageously possible to use existing machines which are used to produce a belt whose width exceeds its height, for example in the form of the first belt part 20.1, with slight modifications for the production of a belt according to the invention with a width / height ratio of about 1.

Die Fig. 6 bis 9 beziehen sich auf die Montage des Riemens 12 in einer Aufzugsanlage. Fig. 6 zeigt mehrere Riemen 12, die über ein Montageband 30 miteinander verbunden sind. Das Montageband 30 umgibt die Riemen 12 zumindest teilweise. Beispielsweise bilden drei, vier oder sechs oder ach acht Riemen 12 einen teilweise von Montageband 30 umgebenen Verbund 120, der als Schlaufe aufgerollt einfach und problemlos in den Aufzugsschacht 1 transportierbar ist. Das Montageband 30 ist beispielsweise reversibel oder irreversibel stoffschlüssig an den Riemen 12 fixiert. Vorteilhafterweise ist es ein dünnes Kunststoffband mit einseitiger Klebeschicht. Das Kunststoffband ist über die Klebeschicht mit den Riemen 12 verbunden. Bei reversiblem Stoffschluss lässt sich das Klebeband 30 von den Riemen 12 abziehen und die gelösten Riemen 12 so vereinzeln. Vorteilhafterweise ist das Montageband 30 auf der von den ersten Kontaktflächen 20.4 abgewandten zweiten Kontaktfläche 20.5 der Riemenkörper 20 angebracht, so dass die Kontaktflächen 20.4 der einzelnen Riemen 12 auch im Verbund 120 frei zugänglich sind. Insbesondere lassen sich die einzelnen Riemen 12 im Verbund 120 über ihre Kontaktflächen 20.4 in entsprechende Rillen der Riemenräder legen. Dabei garantiert das Montageband 30 auch den richtigen seitlichen Abstand der Riemen 12 zueinander auf den Riemenrädern. Hierzu sind die Riemen 12 in seitlichen Montageabständen 30.1 zueinander mit dem Montageband 30 verbunden, welche den seitlichen Abständen der einzelnen Riemen 12 auf den Riemenrädern entsprechen.The Fig. 6 to 9 refer to the mounting of the belt 12 in an elevator installation. Fig. 6 shows a plurality of belts 12, which are interconnected via an assembly line 30. The assembly line 30 surrounds the belt 12 at least partially. For example, three, four or six or eight eight belts 12 form a composite 120 which is partially surrounded by assembly line 30 and can be transported as a loop easily and without problems into the elevator shaft 1. The assembly line 30 is fixed, for example reversibly or irreversibly cohesively to the belt 12. Advantageously, it is a thin plastic tape with a single-sided adhesive layer. The Plastic tape is connected via the adhesive layer with the belt 12. In the case of a reversible adhesive bond, the adhesive tape 30 can be pulled off the belts 12 and the loosened belts 12 can thus be singulated. Advantageously, the assembly line 30 is mounted on the second contact surface 20.5 facing away from the first contact surfaces 20.5 of the belt body 20, so that the contact surfaces 20.4 of the individual belts 12 are also freely accessible in the composite 120. In particular, the individual belts 12 in the composite 120 can be placed over their contact surfaces 20.4 in corresponding grooves of the pulleys. The assembly line 30 also guarantees the correct lateral spacing of the belts 12 relative to one another on the pulleys. For this purpose, the belts 12 are connected to each other in lateral mounting intervals 30.1 with the assembly line 30, which correspond to the lateral distances of the individual belt 12 on the pulleys.

Zur Montage des Verbunds 120 in der Aufzugsanlage werden die folgenden Schritte durchgeführt, der Verbund 120 wird auf Riemenräder 4.1, 4.2, 4.3 gelegt und Riemen 12 an Enden 12.1, 12.2 des Verbunds 120 werden mit Riemenfixpunkten 10, 11 fixiert. Dabei werden die Riemen 12 des Verbunds 120 gemäss Montageabständen 30.1 auf Riemenräder 4.1, 4.2, 4.3 gelegt.For assembling the composite 120 in the elevator installation, the following steps are carried out, the composite 120 is placed on belt wheels 4.1, 4.2, 4.3 and belts 12 at ends 12.1, 12.2 of the composite 120 are fixed with belt fixing points 10, 11. The belts 12 of the composite 120 are placed on pulleys 4.1, 4.2, 4.3 according to assembly distances 30.1.

Dazu ist es zweckmässig ein Hilfshebezeug 14 zu verwenden, welches im vorliegenden Beispiel der Fig. 7 bis 9 an der Decke des Aufzugsschachts 1 befestigt ist. Als Hilfshebezeug 14 wird vorzugsweise eine im obersten Schachtbereich angebrachte flaschenzugartige Einrichtung verwendet. Es wäre auch möglich, eine im untersten Schachtbereich angeordnete Fluid-Hebevorrichtung (z.B. ein Hydrauliksystem) oder auch einen Baukran einzusetzen.For this purpose, it is expedient to use an auxiliary hoist 14, which in the present example the Fig. 7 to 9 is attached to the ceiling of the elevator shaft 1. As an auxiliary hoist 14, a flaschenzugartige device mounted in the top shaft area is preferably used. It would also be possible to use a fluid lifting device arranged in the lowest shaft area (eg a hydraulic system) or else a construction crane.

Die Aufzugskabine 3 ist mindestens in Strukturform vorhanden. Die endgültige Fertigstellung der Aufzugskabine 3 kann später erfolgen. Die Aufzugskabine 3 besitzt eine Bodenplatte oder einen unteren Strukturteil mit einer Unterfläche 6, an der erste Kabinen-Umlenkrollen 4.2 und zweite Kabinen-Umlenkrollen 4.2 angeordnet sind, sowie eine Deckplatte (oder einen oberen Strukturteil), die im vorliegenden Beispiel eine Art Arbeitsplattform bildet. Die Arbeitsplattform kann auch durch die Bodenplatte der Aufzugskabine 3 gebildet sein, im Falle, dass die vorhandene Strukturform der Aufzugskabine 3 noch keine Seitenwände umfasst.The elevator car 3 is present at least in structural form. The final completion of the elevator car 3 can be done later. The elevator car 3 has a bottom plate or a lower structural part with a lower surface 6, on which first cabin deflection rollers 4.2 and second cabin deflection rollers 4.2 are arranged, and a cover plate (or an upper structural part), which forms a kind of working platform in the present example. The work platform may also be formed by the bottom plate of the elevator car 3, in the event that the existing structural shape of the elevator car 3 does not yet include side walls.

Die Aufzugskabine 3 ist an das Hilfshebezeug 14 ankoppelbar und durch dieses im Aufzugsschacht 1 auf- und abwärts verfahrbar. Sobald die Aufzugskabine 3 am Hilfshebezeug 14 angekoppelt und fixiert ist, wird der Verbund 120 gemäss Fig. 6 im Aufzugsschacht 1 verlegt.The elevator car 3 can be coupled to the auxiliary hoist 14 and by this in the elevator shaft 1 up and moved down. Once the elevator car 3 is coupled to the auxiliary hoist 14 and fixed, the composite 120 is according Fig. 6 laid in the elevator shaft 1.

Gemäss Fig. 7 wird der Verbund 120 in Form einer Schlaufe 12.3 auf das Dach der Aufzugskabine 3 transportiert, dort deponiert und teilweise abgerollt. Vorteilhafterweise befindet sich die Aufzugskabine 3 dazu in der Schachtgrube, damit der Monteur die Schlaufe 12.3 vom Erdgeschoss des Gebäudes einfach das Dach der Aufzugskabine 3 legen kann. Das eine Ende 12.2 des abgerollten Verbunds 120 wird an einer Seite an der Aufzugskabine 3 herabgelassen, unter der Aufzugskabine 3 zur gegenüberliegenden Seite der Aufzugskabine 3 geführt und von dort wieder zum Dach der Aufzugskabine 3 hoch geführt. Der Monteur kann natürlich auch zuerst den Verbund 120 um die Kabinentragrollen 4.2 legen und dann die Schlaufe 12.3 auf dem Dach der Aufzugskabine 3 deponieren. Nun werden die Riemen 12 des Verbunds 120 über die Kontaktflächen 20.4 in die entsprechenden Rillen der Kabinentragrollen 4.2 eingelegt. Optional werden in den Figuren nicht dargestellte Entgleisungsschutze, welche sowohl in radialer als auch in axialer Richtung ein Entgleisen der Riemen 12 bei Tragmittellose verhindern, bei den Kabinentragrollen 4.2 angebracht. Das Ende 12.2 wird provisorisch auf dem Dach der Aufzugskabine 3 fixiert. Nun wird die Aufzugskabine 3 vom Hilfshebezeug 14 in den Schachtkopf verfahren. Die einzelnen Riemen 12 des Endes 12.2 werden einzeln an jeweils einem zweiten Riemenfixpunkt 11 definitiv fixiert.According to Fig. 7 the composite 120 is transported in the form of a loop 12.3 on the roof of the elevator car 3, deposited there and partially unrolled. Advantageously, the elevator car 3 is in the shaft pit for this purpose, so that the fitter can put the loop 12.3 from the ground floor of the building simply the roof of the elevator car 3. The one end 12.2 of the unrolled composite 120 is lowered on one side to the elevator car 3, led under the elevator car 3 to the opposite side of the elevator car 3 and from there back up to the roof of the elevator car 3. Of course, the installer can of course first lay the composite 120 around the cabin support rollers 4.2 and then deposit the loop 12.3 on the roof of the elevator car 3. Now the belts 12 of the composite 120 are inserted via the contact surfaces 20.4 in the corresponding grooves of the Kabinentragrollen 4.2. Optionally, derailment protectors, not shown in the figures, which prevent derailing of the straps 12 in the case of suspension medium slats both in the radial and in the axial direction, are attached to the cab support rollers 4.2. The end 12.2 is provisionally fixed on the roof of the elevator car 3. Now the elevator car 3 is moved by the auxiliary hoist 14 in the shaft head. The individual belts 12 of the end 12.2 are fixed individually to a respective second belt fixing point 11.

Im weiteren Montageschritt gemäss Fig. 8 wird die Schlaufe 12.3 vom Dach der Aufzugskabine 3 in die Grube des Aufzugsschachts abgerollt. Dabei wird das andere Ende 12.1 des abgerollten Verbunds 120 festgehalten und um die Treibscheibe bzw. Treibwelle 4.1 geführt und in die Grube des Aufzugsschachts abgelassen. Falls genügend Platz vorhanden ist, kann der Monteur kann auch die ganze Schlaufe 12.3 um die Treibscheibe bzw. Treibwelle 4.1 führen und sie dann in die Grube des Aufzugsschachts ablassen. Nun werden die Riemen 12 des Verbunds 120 über die Kontaktflächen 20.4 in die entsprechenden Rillen der Treibscheibe bzw. Treibwelle 4.1 eingelegt. Wiederum werden optional Entgleisungsschutze bei der Treibscheibe bzw. Treibwelle 4.1 angebracht.In the subsequent assembly step according to Fig. 8 the loop 12.3 is unrolled from the roof of the elevator car 3 into the pit of the elevator shaft. In this case, the other end 12.1 of the unrolled composite 120 is held and guided around the traction sheave or drive shaft 4.1 and discharged into the pit of the elevator shaft. If enough space is present, the fitter can also lead the whole loop 12.3 to the traction sheave or drive shaft 4.1 and then drain them into the pit of the elevator shaft. Now, the belt 12 of the composite 120 are inserted via the contact surfaces 20.4 in the corresponding grooves of the traction sheave or drive shaft 4.1. Again, derailment protectors are optionally attached to the traction sheave or drive shaft 4.1.

Im folgenden Montageschritt gemäss Fig. 9 wird das andere Ende 12.1 des Verbunds 120 in der Schachtgrube um eine Gegengewichtstragrolle 4.3 gelegt. Die Aufzugskabine 3 wird vom Hilfshebezeug 14 in die Schachtgrube verfahren und das andere Ende 12.1 wird provisorisch auf dem Dach der Aufzugskabine 3 fixiert. Daraufhin wird die Aufzugskabine 3 vom Hilfshebezeug 14 in den Schachtkopf verfahren und die Riemen 12 des Verbunds 120 werden über die Kontaktflächen 20.4 in die entsprechenden Rillen der Gegengewichtstragrolle 4.3 eingelegt. Optional werden Entgleisungsschutze bei der Gegengewichtstragrolle 4.3 angebracht. Die einzelnen Riemen 12 des anderen Endes 12.1 werden nun einzeln an jeweils einem ersten Riemenfixpunkt 10 definitiv fixiert. Erst zu diesem Zeitpunkt, wo die Riemen 12 vollständig im Aufzugsschacht 1 verlegt sind, kann das Montageband 30 vom Verbund 120 entfernt werden.In the following assembly step according to Fig. 9 the other end 12.1 of the composite 120 is placed in the pit around a counterweight carrying roller 4.3. The elevator car 3 is moved by the auxiliary hoist 14 into the shaft pit and the other end 12.1 is provisionally fixed on the roof of the elevator car 3. Then, the elevator car 3 is moved by the auxiliary hoist 14 in the shaft head and the belt 12 of the composite 120 are inserted via the contact surfaces 20.4 in the corresponding grooves of the counterweight roller 4.3. Optionally, derailment guards are attached to the counterweight carrying roller 4.3. The individual belts 12 of the other end 12.1 are now fixed individually to a respective first belt fixing point 10. Only at this time, where the belts 12 are completely laid in the elevator shaft 1, the assembly line 30 can be removed from the composite 120.

Die fünfte Ausführungsform der vorliegenden Erfindung mit einem Riemen 12 gemäss Fig. 10 entspricht weitgehend derjenigen gemäss Fig. 5, so dass auf die Beschreibung zu Fig. 5 verwiesen wird. Im einzigen Unterschied zur Ausführungsform gemäss Fig. 5 ist in der Ausführungsform gemäss Fig. 10 der Riemenkörper 20 auf der zweiten Querschnittsseite mit einer flachen zweiten Kontaktfläche 20.5 ausgebildet. Diese flache zweite Kontaktfläche 20.5 weist keine Profilierung in Form von Quer- oder Längsrippen auf.The fifth embodiment of the present invention with a belt 12 according to Fig. 10 largely corresponds to that according to Fig. 5 , so to the description too Fig. 5 is referenced. In the only difference to the embodiment according to Fig. 5 is in the embodiment according to Fig. 10 the belt body 20 is formed on the second cross-sectional side with a flat second contact surface 20.5. This flat second contact surface 20.5 has no profiling in the form of transverse or longitudinal ribs.

Schliesslich entspricht die sechste Ausführungsform der vorliegenden Erfindung mit einem Riemen 12 gemäss Fig. 11 derjenigen gemäss Fig.10, wobei im einzigen Unterschied zur Ausführungsform gemäss Fig. 10 der Riemenkörper gemäss Fig. 11 aus zwei Teilriemen 20.1, 20.2 wie in den Ausführungsformen gemäss den Fig. 2 bis 4 und 6 beschrieben und dargestellt, besteht. Die flache zweite Kontaktfläche 20.5 ist parallel zur Längsfläche 20.3 angeordnet. Die Zugträgeranordnung 21 kommt in etwa mittig zur maximalen Höhe t des Riemenkörpers zu liegen.Finally, the sixth embodiment of the present invention with a belt 12 according to Fig. 11 according to those Figure 10 , wherein in the only difference to the embodiment according to Fig. 10 the belt body according to Fig. 11 from two sub-belts 20.1, 20.2 as in the embodiments according to the Fig. 2 to 4 and 6 described and illustrated exists. The flat second contact surface 20.5 is arranged parallel to the longitudinal surface 20.3. The tension member assembly 21 comes to rest approximately in the middle of the maximum height t of the belt body.

Claims (20)

  1. Lift installation with a lift cage (3), a drive (2) and a belt arrangement with at least one belt (12), wherein the belt (12) comprises a belt body (20) in which a tensile carrier arrangement (21) is arranged and which has a first contact surface (20.4) on a first cross-sectional side in the direction of the height of the belt (12) and a second contact surface (20.5) on a second cross-sectional side opposite the first cross-sectional side in the direction of the height of the belt (12), characterised in that the ratio of the maximum width (w) to the maximum height (t) of the belt (12) lies in the region of 0.8 to 1.0, preferably in the region of 0.9 to 1.0 and particularly preferably at 1.0.
  2. Lift installation according to claim 1, wherein the tensile carrier arrangement (21) lies approximately centrally in the belt body (20) with respect to the maximum height (t).
  3. Lift installation according to claim 1 or 2, wherein the belt body (20) comprises a first part belt (20.1) in which the tensile carrier arrangement (21) is arranged and a second part belt (20.2) fixedly connected therewith in a longitudinal surface (20.3).
  4. Lift installation according to claim 3, wherein the second part belt (20.2) has a lesser hardness, particularly a lesser Shore hardness, than the first part belt (20.1).
  5. Lift installation according to any one of claims 1 to 4, wherein the first and/or second contact surface has or have a coating (20.7) with a specific coefficient of friction.
  6. Lift installation according to any one of claims 1 to 4, wherein the first and/or second contact surface has or have a vapour deposition (20.7) with a specific coefficient of friction.
  7. Lift installation according to any one of claims 1 to 4, wherein the first and/or second contact surface has or have a flocking (20.7) with a specific coefficient of friction.
  8. Lift installation according to any one of the preceding claims, wherein the first contact surface (20.4) has at least one rib, preferably two ribs, particularly wedge ribs (20.6).
  9. Lift installation according to any one of the preceding claims, wherein the second contact surface (20.5) has at least one rib, preferably two ribs, particularly wedge ribs (20.6).
  10. Lift installation according to one of claims 1 to 8, wherein the second contact surface (20.5) is formed to be flat.
  11. Lift installation according to any one of the preceding claims, wherein the first and second contact surfaces (20.4, 20.5) have different colours.
  12. Lift installation according to any one of the preceding claims, wherein the belt arrangement comprises several belts (12) which are arranged adjacent to one another in the direction of their width and which are connected together in mechanically positive manner.
  13. Belt (12) for a lift installation according to any one of the preceding claims, wherein the belt (12) comprises a belt body (20) in which a tensile carrier arrangement (21) is arranged and which has a first contact surface (20.4) on a first cross-sectional side in the direction of the height of the belt (12) and a second contact surface (20.5) on a second cross-sectional side opposite the first cross-sectional side in the direction of the height of the belt (12), characterised in that the ratio of the maximum width (w) to the maximum height (t) of the belt (12) lies in the region of 0.8 to 1.0, preferably in the region of 0.9 to 1.0 and particularly at 1.0.
  14. Composite (120) with several belts (12) according to claim 13, wherein the belts (12) are connected together by way of an assembly band (30).
  15. Composite (120) according to claim 14, wherein the belts (12) are at least partly surrounded by the assembly band (30) and/or the assembly band (30) is connected on a second contact surface (20.5) with the belts (12).
  16. Composite (120) according to claim 14 or 15, wherein the belts (12) are connected at assembly spacings (30.1) from one another with the assembly belt (30).
  17. Method for mounting of a composite (120) according to any one of claims 14 to 16 in a lift installation, comprising the following steps:
    a) placing the composite (120) on belt wheels (4.1, 4.2, 4.3) and
    b) fixing the belts (12) at ends (12.1, 12.2) of the composite (120) to belt fixing points (10, 11).
  18. Method according to claim 17, wherein the composite (120) is placed on belt wheels (4.1, 4.2, 4.3) in accordance with assembly spacings (30.1).
  19. Method according to claim 17 or 18, wherein the belts (12) of the composite (120) are placed in grooves of at least one cage deflecting roller (4.2) and/or grooves of at least one drive pulley or drive shaft (4.1) and/or grooves of at least one counterweight support roller (4.3).
  20. Method according to any one of claims 17 to 19, wherein the composite (120) is transported into the lift shaft (1) as a loop (12.3) and is unrolled from the loop (12.3).
EP07113880A 2006-08-11 2007-08-06 Lift facility with a belt, belt for such a lift facility, combination of such a belt and method for assembling such a combination in a lift facility Not-in-force EP1886958B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07113880A EP1886958B1 (en) 2006-08-11 2007-08-06 Lift facility with a belt, belt for such a lift facility, combination of such a belt and method for assembling such a combination in a lift facility
EP09173749A EP2141110B1 (en) 2006-08-11 2007-08-06 Lift load-bearing mechanism for a lift system, lift system with such a lift load-bearing mechanism and method for assembly of such a lift system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06118824 2006-08-11
EP07113880A EP1886958B1 (en) 2006-08-11 2007-08-06 Lift facility with a belt, belt for such a lift facility, combination of such a belt and method for assembling such a combination in a lift facility

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP09173749A Division EP2141110B1 (en) 2006-08-11 2007-08-06 Lift load-bearing mechanism for a lift system, lift system with such a lift load-bearing mechanism and method for assembly of such a lift system
EP09173749.4 Division-Into 2009-10-22

Publications (2)

Publication Number Publication Date
EP1886958A1 EP1886958A1 (en) 2008-02-13
EP1886958B1 true EP1886958B1 (en) 2011-07-13

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EP07113880A Not-in-force EP1886958B1 (en) 2006-08-11 2007-08-06 Lift facility with a belt, belt for such a lift facility, combination of such a belt and method for assembling such a combination in a lift facility
EP09173749A Not-in-force EP2141110B1 (en) 2006-08-11 2007-08-06 Lift load-bearing mechanism for a lift system, lift system with such a lift load-bearing mechanism and method for assembly of such a lift system

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EP (2) EP1886958B1 (en)
JP (1) JP5217285B2 (en)
KR (1) KR101372778B1 (en)
CN (4) CN101121487B (en)
AR (1) AR062350A1 (en)
AT (2) ATE516243T1 (en)
AU (1) AU2007205743A1 (en)
BR (1) BRPI0703307A (en)
CA (1) CA2596717A1 (en)
ES (2) ES2375900T3 (en)
MX (1) MX2007009687A (en)
MY (1) MY146053A (en)
NO (1) NO20074121L (en)
NZ (2) NZ560366A (en)
RU (1) RU2448031C2 (en)
SG (2) SG139701A1 (en)
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ZA (3) ZA200706601B (en)

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ZA200706600B (en) 2008-11-26
KR20080014699A (en) 2008-02-14
RU2448031C2 (en) 2012-04-20
ZA200706601B (en) 2008-09-25
JP5217285B2 (en) 2013-06-19
EP2141110B1 (en) 2011-10-19
NZ560366A (en) 2009-03-31
ZA200706605B (en) 2009-07-29
SG139701A1 (en) 2008-02-29
BRPI0703307A (en) 2008-04-01
CN101122098B (en) 2013-03-20
CN101122100A (en) 2008-02-13
ES2375900T3 (en) 2012-03-07
NO20074121L (en) 2008-02-12
CN101121487A (en) 2008-02-13
ATE529368T1 (en) 2011-11-15
CN101121487B (en) 2013-01-09
JP2008044790A (en) 2008-02-28
EP2141110A1 (en) 2010-01-06
CN101122099A (en) 2008-02-13
KR101372778B1 (en) 2014-03-10
NZ560471A (en) 2009-03-31
ATE516243T1 (en) 2011-07-15
TW200829502A (en) 2008-07-16
ES2369795T3 (en) 2011-12-07
MY146053A (en) 2012-06-29
SG157400A1 (en) 2009-12-29
CN101122098A (en) 2008-02-13
AU2007205743A1 (en) 2008-02-28
EP1886958A1 (en) 2008-02-13
RU2007130686A (en) 2009-02-20
CN101122099B (en) 2011-09-14
AR062350A1 (en) 2008-11-05
CA2596717A1 (en) 2008-02-11
MX2007009687A (en) 2009-02-18

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